The Bacalar spearheads a return to coachbuilding by Bentley Mulliner and features an enhanced version of Bentley’s peerless 6.0-litre W12 TSI engine, the most advanced 12-cylinder engine in the world.

Since the first introduction of the twin-turbocharger W12 in 2003, the engine’s refinement has seen an increase of up to 27 percent in power, 38 percent in torque and a reduction of 38 percent in emissions.

This has been realised through the evolution and optimisation of the crankcase, improvements in the oil and cooling systems, twin-scroll turbocharging technology and more effective injection and combustion processes.

Sources from Bentley told this correspondent that these improvements resulted from several initiatives taken by the company. It may be recalled that the latest generation of W12 was launched in the Bentayga in 2016. “A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process. Improvements were also made to the cooling system, with the engine featuring three separate coolant circuits. The first is designed to bring the cylinder heads up to optimum operating temperature as quickly as possible for best engine performance and low emissions. The second cool the engine block and oil system, while the third handles the turbochargers’ thermal load. Each system has a dedicated water pump, allowing optimised individual control,” sources said.

Twin-scroll Turbocharging

Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.

Effective Injection

The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.

Interestingly, each W12 engine is hand-built over 6.5 hours by a team of 45 craftspeople before undertaking a highly sophisticated test regime of over an hour via three specialist diagnostic machines during the engines assemble.

According to the sources, there were three specialist diagnostic machines with sophisticated test regime.

Leak Test

The leakage test is conducted by pressurising each of the systems for fuel, oil and water individually. The different cavities are pressurised to values between 0.2 – 5.0 bar respectively and then measured whilst the pressure decays over time. The reduction in pressure versus time represents the quality of the sealing of the engine assembly. If the pressure drops faster than expected, a leak is indicated. A special fluid is sprayed on to the exterior of the engine to pin-point any leakage paths.

Cold Test

The engine is loaded on to a testbed plate, and connections are made to the engine loom and all engine systems, whilst a large electric motor couples to the engine via the crankshaft. “Motoring” the engine via the crankshaft allows the testbed to collect data from a suite of sensors. The facility measures 600 individual properties and characteristics of the engine during a 15-minute cycle. Due to the low running speed of 120 RPM for the test, finer details and any inconsistencies can be identified thanks to a sample rate that highlights even the briefest of anomalies that would be invisible if the engine was firing or running at speed. This fine detail analysis is also valuable for confirming the precise timing of the engine. Using positioning information from sensors on the crankshaft, crankcase and camshafts, and cylinder compression values, the Cold Test can confirm the engine timing is accurate and, therefore, achieve the best possible combustion cycle.

Hot Test

When the engine arrives for hot testing, a UV dye is added to the engine to help identify any leaks. The coolant and fuel system are pressurised with air and nitrogen, respectively, for a final check before introducing the necessary fluids ready for testing. The engine is cranked to build oil pressure before the ignition system is energised and then left to idle whilst the engine test technician listens for any refinement issues and checks for leaks with a UV lamp. Sources said that each W12 is then tested for a minimum of 21.5 minutes and runs up to 3,800 rpm with a maximum load of 300 Nm. One in every one hundred engines receives a full eight-hour power test, achieving 6,000 RPM, and must achieve 900Nm.

The three tests that the Bacalar engine has already been put through are part of Bentley’s exceptional quality control processes. These testing procedures provide feedback on the quality of each engine and provide multiple checkpoints to catalogue the exact behaviour of each engine from the moment of manufacture. Since the installation of the three testbeds in 2002, over 100,000 W12 engines have been handcrafted in Crewe and passed through the test facility.

Technology Advancements

Bentley’s legendary 6.0-litre twin-turbocharged W12, created in 2002, has evolved into the latest iteration of the W12 engine used across today’s current model range. The unique W-configuration means that the engine is 24 percent shorter than an equivalent V12, benefitting packaging and maximising usable cabin space.

The latest generation of W12 was launched in the Bentayga in 2016. A thoroughly reworked engine included a crankcase 30 percent stronger than its predecessor, while the cylinder surfaces were coated to reduce friction and improve corrosion resistance. A low-alloy steel coating is applied to the bores using an Atmospheric Plasma Spray (APS) process.

The W12 combines high-pressure direct fuel injection (200 bar injection pressure) with low-pressure port injection (six bar). The combination of these two systems maximises refinement, lowers particulate emissions and optimises power and torque delivery.

Twin-scroll turbochargers minimise turbo response time and provide a more efficient exhaust package. The exhaust assemblies for the three front and three rear cylinders are separate from one another, which then feed the twin-scroll impellers. The turbocharger housing is welded directly to the exhaust manifolds and feature integrated speed sensors, allowing the engine to monitor turbo performance for maximum efficiency.

Bentley’s variable displacement system shuts down half of the engine under defined conditions. Intake and exhaust valves, fuel injection and ignition are all shut down on defined cylinders, with the engine running as a six-cylinder for improved efficiency. The system will run in this mode in gears three to eight, below 3,000 rpm and up to 300 Nm torque output.

The first Bacalar engine followed the same build process in Bentley’s centre of excellence for W12 engines, ensuring the same level of quality and expertise before final testing, sources added. (MT)

Sustainable, Recyclable Electric Motors

Bentley Motors has announced a three-year research study that aims to revolutionise the sustainability of electric motors. Supporting Bentley’s commitment to offering only hybrid or electric vehicles by 2026, the result could see recycled rare-earth magnets used in selected ancillary motors for the very first time.

The study, titled RaRE (Rare-earth Recycling for E-machines), intends to build on work completed at the University of Birmingham in devising a method of extracting magnets from waste electronics. The project will also scale up this process and repurpose the extracted magnetic material into new recyclable magnets for use within bespoke ancillary motors.

Adding to the sustainability benefits that RaRE will provide, the bespoke motors created through this method promise to minimise complexity through manufacture while supporting the development of the UK supply chain for both mass production and low volume components.

Dr Matthias Rabe, Member of the Board for Engineering, Bentley Motors, said, “As we accelerate our journey to electrification, offering only hybrid or electric vehicles by 2026, and full electric by 2030, it is important that we focus on every aspect of vehicle sustainability, including sustainable methods of sourcing materials and components. RaRE promises a step-change in electrical recyclability, providing a source of truly bespoke, low voltage motors for a number of different applications, and we are confident the results will provide a basis for fully sustainable electric drives.”

This study will run in parallel to Bentley’s OCTOPUS research programme, which aims to deliver a breakthrough in e-axle electric powertrains, utilising a fully integrated, free from rare-earth magnet e-axle that supports electric vehicle architectures.

As with OCTOPUS, RaRE is an OZEV funded project delivered in partnership with Innovate UK, which brings together the following partners with distinct roles and responsibilities. Bentley Motors will lead specification setting and test protocol development and support the design and manufacturing activities, while Hypromag will scale up the recycling processes developed at the University of Birmingham and convert the extracted powders to sintered magnets with properties designed around those required for the auxiliary motors. On its part, Unipart Powertrain Applications Ltd will lead the development of manufacturing scale-up routes to ensure facilities and processes defined are suitable for volume automotive manufacture.

Advanced Electric Machines Research Ltd will lead the motors’ design and development, while Intelligent Lifecycle Solutions Ltd will pre-process computer hard disk drives to remove the rare earth magnet containing components from the waste, which will be shipped to Hypromag for removal of the rare earth magnets. The University of Birmingham will provide cast alloys, which will be fed into Hypromag to blend with secondary materials to produce sintered magnets. (MT)

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JSW MG Motor India has introduced a customer programme for the MG Hector SUV during August 2026 to mark seven years of the model in India. The promotion offers benefits of up to INR 60,000, including exchange allowances, loyalty rewards, corporate incentives and price adjustments.

The MG Hector was launched in 2019 as an internet-connected passenger SUV. The range starts at an ex-showroom price of INR 1.19 million. Under the promotion, financing options include 100 percent on-road price funding for terms extending up to 84 months, alongside complete financing options for vehicle accessories.

Vinay Raina, Chief Commercial Officer, JSW MG Motor India, said, “The MG Hector has enjoyed an extraordinary journey over the past seven years, earning the trust of thousands of Indian families and redefining expectations in the SUV segment. As we celebrate this important milestone, we wanted to thank our customers with an ownership programme that delivers value far beyond the purchase of the vehicle. The Anniversary Programme reflects our customer-first philosophy and our commitment to making the MG Hector ownership experience as rewarding as the product itself.”

The vehicle features front and rear bumpers, a redesigned front grille, alloy wheels and updated exterior colour choices. Cabin updates include multi-tone interior schemes, synthetic and leather trims, front seat ventilation, an adjustable steering column and a power-adjustable driver seat.

On the inside, it gets a 14-inch portrait touchscreen display with gesture control capabilities, a digital instrument cluster and over 70 connected vehicle functions. Additional features include digital key functionality, remote air conditioning management, and automated maintenance notification systems.

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Hyundai Motor India (HMIL) has announced that it has exceeded 800,000 connected cars on Indian roads and aims to reach cumulative connected vehicle sales of one million units by 2027. The manufacturer targets crossing two million cumulative connected vehicle sales by 2030.

Connected vehicle penetration across Hyundai Motor India’s Indian product range has expanded from 4 percent in 2019 to 20 percent in 2026, supported by sales in models including the Creta, Venue and i20. The company's connected mobility infrastructure operates on its Hyundai Bluelink platform, which provides over 70 functions covering safety, security and convenience. Available systems include remote vehicle monitoring, diagnostics, location tracking, in-car payments via Hyundai Pay, remote immobilisation and voice commands supported in five languages.

Tarun Garg, MD & CEO, Hyundai Motor India, said, “The growing adoption of connected vehicles reflects the evolving expectations of customers and the increasing role of technology in shaping mobility. As we move towards our goal of 1 million connected car sales by 2027, we remain focused on advancing software-defined mobility and expanding connected technologies across our portfolio. Our upcoming mass-market electric SUV, which will offer next-generation connected car technology as standard across all variants, marks an important step in strengthening the convergence of connected and electric mobility while delivering future-ready ownership experiences for customers.”

Hyundai Motor India introduced OEM-fitted connected vehicle technology to India in 2019 with the launch of the Venue, followed by over-the-air map updates on the i20 in 2020. The company deployed its Audio Video Navigation Telematics platform in 2022, followed by its Connected Car Navigation Cockpit system with controller over-the-air update capability in 2025 to support software-defined vehicle development.

The platform has provided roadside assistance and emergency responses to over 0.5 million motorists, supported 15,000 crash notification interventions and assisted law enforcement agencies with vehicle recovery operations.

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Tata Motors Passenger Vehicles (TMPV) has announced consumer offers and vehicle special editions across its internal combustion engine and electric vehicle portfolios in Kerala for the Onam festive period.

The festival promotions run through August 2026, offering financial benefits up to INR 225,000, priority delivery slots and vehicle financing packages. As part of the seasonal campaign, the manufacturer has introduced the Sierra Jubilee Edition, Nexon Camo Edition and Punch HBX Pack to its product line-up.

The maximum benefits vary by model across both powertrain platforms – Internal combustion engine (ICE) models include benefits up to INR 54,500 on the Altroz, INR 72,500 on the Nexon and INR 77,500 on the Curvv.

The Harrier and Safari both get benefits up to INR 47,000, while the Sierra includes a loyalty benefit of INR 30,000. In the electric vehicle segment, savings up to INR 60,000 for the Nexon.ev and INR 55,000 for the Curvv.ev is being offered by the automaker. The Harrier.ev features benefits reaching INR 225,000, which includes a loyalty benefit of INR 100,000 alongside complimentary insurance coverage.

Vivek Srivatsa, Chief Commercial Officer, Tata Passenger Electric Mobility, said, “Onam is a celebration of cherished traditions, meaningful reunions and the progress that every family takes pride in. It is a season of gratitude for how far they have come and optimism for the road ahead. Through our 'Celebrate How Far You've Come' campaign, we are celebrating the aspirations, achievements and milestones that make every customer's journey and success unique. Kerala has always been a deeply important market for TMPV, and we are delighted to mark this festive season with special editions, attractive offers and seamless ownership solutions across our safest and most diverse range of cars and SUVs. We look forward to celebrating with our customers their next milestone and creating many more joyful memories.”

At present, Tata Motors Passenger Vehicles operates 85 service centres across Kerala to support vehicle maintenance during and after the sales campaign.

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Tata Motors Passenger Vehicles (TMPV) has launched the Nexon CAMO, a new special edition of its popular compact SUV, with prices beginning at INR 999,000 ex-showroom in Delhi. The introduction coincides with the brand’s celebration of a decade since the Nexon’s original debut and the trust of over 1.1 million customers, marking the model’s enduring success in the Indian automotive market.

The new CAMO variant distinguishes itself with two exclusive premium paint schemes, named Munnar Mist and Coorg Cloud. The former is a dynamic dark green that shifts to a sophisticated grey in shadows and reveals rich green and golden tones under sunlight. In contrast, the latter is a contemporary grey-silver finish with subtle metallic highlights, designed to offer an understated yet premium aesthetic that complements the SUV's rugged character.

TMPV has equipped the Nexon CAMO with a significant technology upgrade, headlined by an Ultra View Twin HD Digital Cockpit. This features a 31.24-cm infotainment system and a 26.03-cm digital instrument cluster, both from Harman, with the latter including embedded navigation. The technology package is further enhanced by an integrated dashcam recorder that is part of the 360-degree camera surround view system, which also includes a blind spot view monitor.

The special edition is not solely about aesthetics and screens, as it also incorporates a comprehensive suite of comfort and safety features. The cabin includes ventilated leatherette front seats, a voice-assisted panoramic sunroof, and an immersive nine-speaker JBL audio system with a subwoofer. Safety is addressed through seven Advanced Driver Assistance Systems functions calibrated for Indian roads, six airbags and electronic stability control, ensuring the CAMO is as secure as it is stylish.

Maintaining the Nexon’s hallmark versatility, the CAMO is offered across all three powertrain options: a 1.2-litre turbocharged petrol, a 1.5-litre diesel and the segment-exclusive 1.2-litre turbocharged iCNG with twin-cylinder technology. With multiple transmission choices available, the automaker has positioned the Nexon CAMO as a distinctive and aspirational package for a wide range of SUV buyers, reinforcing the model's legacy of innovation as the festive season approaches.

Vivek Srivatsa, Chief Commercial Officer, Tata Passenger Electric Mobility, said, "Since its launch a decade ago, the Nexon has provided comfortable, safe and enjoyable journeys for over 1.1 million families, becoming one of India's most iconic nameplates with an unmissable presence on the roads. This success has been built on constantly raising the bar in safety, technology and design while keeping these innovations accessible to a wider set of customers. The Nexon CAMO carries that spirit forward, with two striking new colours and an elevated technology package that makes it the most distinctive Nexon yet. Timed perfectly for the festive season, it gives customers an even stronger reason to make the Nexon their own."

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