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Bentley builds its final 6.75-liter V8, ending a 61-year production run

Bentley has just finished its very last 6.75-liter V8. While engines come and go, this is significant because Bentley has been building this engine, known as the L-series, for 61 years. This final engine will go in the 30th and last Bentley Mulsanne, a 6.75 Edition by Mulliner, marking the end of the flagship sedan. The L-series engine was first introduced in 1959, and according to Bentley, it was developed in order to develop more power than its existing inline-six without adding weight or taking up more space. The engine in fact weighed 30 pounds less than the six-cylinder, and it made about 180 horsepower. That original engine "only" had 6.2-liters of displacement, and it wasn't until 1971 that it would reach 6.75 liters thanks to increased stroke. This final version of the engine is significantly different from its fuel injection to its twin-turbochargers, but is based on the same design. And with 530 horsepower and 811 pound-feet of torque, it's the most powerful iteration of the engine. At 61 years, the Bentley engine is arguably the V8 with the longest production run. While the first-generation Chevy small block V8 was introduced earlier for the 1955 model year and is still built in crate engine form, GM stopped using it in production cars in 2002. Far fewer Bentley engines were built, though, with a total over 36,000, as opposed to the millions of Chevy small blocks in the world. Of course, volume is sort of the antithesis of what makes a Bentley a Bentley. With the 6.75-liter engine out of production, all of Bentley's engines are derived from VW Group engines, from its W12 to the plug-in hybrid V6. Related Video:    

Bentley's Ultra Performance Hybrid succeeds the 6.0-liter W12

The twin-turbo 6.0-liter W12 engine composed the soundtrack to dreams around the world once it found a home in the Bentley Continental GT, which entered a production in 2003. That engine will sing its final encore in the Bentley Batur Convertible before the curtain comes down, tuned to its highest-ever output of 739 horsepower and 738 pound-feet of torque. The Englanders in Crewe have lifted the hood on the successor, without providing all the details. What we know for now is that the powerplant debuting this summer is called the Ultra Performance Hybrid, a V8 PHEV with "more than 750 PS combined output" and an all-electric range of 50 miles on the WLTP cycle.   We haven't been given a displacement figure, nor did Bentley use the word "turbo" in its release. However, looking around the Volkswagen Group, the twin-turbo 4.0-liter V8 PHEV in the Porsche Panamera Turbo E-Hybrid and Lamborghini Urus SE seems a solid fit for this application. We're told to expect "the highest output ever offered in a Bentley," Since the 740 hp in the droptop Batur equals 750 PS — achieved without electrical assistance — there's reason to hope for something closer to 800 hp than 750. The Panamera Turbo E-Hybrid makes a combined 670 hp and 680 lb-ft, the Urus SE a combined 800 hp and 699 lb-ft. Both of them also hide a 25.9-kWh battery. [video width="2000" height="720" mp4="https://s.aolcdn.com/os/ab/_cms/2024/05/09084632/bentley-hybrid-sound.mp4"][/video] In the Bentley, the e-motors will also spread torque across a wider swath of the rev band than the non-hybrid W12. The company released a short sound clip, and yep, this things sounds like a Bentley engine, from purr to growl never leaving the basso profondo range. The Ultra Performance Hybrid will take its place at the top of the Bentayga, Continental GT, and Flying Spur ranges before the summer ends. We find out closer to that time what happens to the other engines on the menu, the twin-turbo 4.0-liter non-hybrid V8 and the twin-turbocharged 2.9-liter and 3.0-liter V6 plug-in hybrids for the Flying Spur and Bentayga, respectively. 

Bentley Bentayga crossover prototype keeps on strippin'

The Geneva Motor Show is over, and the stunning EXP 10 Speed 6 concept has had its moment in the limelight. But now it's back down to business for Bentley. That means working on getting its new Bentayga crossover to market, and from these latest spy shots, it seems that's exactly what the British automaker is up to. Pictured here wearing less clothing than ever before, the Bentayga looks pretty darn near ready for its debut. The pre-production prototype even has its full leather seats in place, with plastic covers to protect them as the development drivers (like the one trying his darnedest to block the shots) do their thing. Of course there are still some parts hidden from view, with thin foil covering the headlights, taillamps and rear quarter windows. There's also something weird going on with those gills on the rear door. And the wheels are likely to be replaced as the rest of the trim is installed. But by and large, what you see here is what the production version is expected to look like, sans the polish. Related Video: