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2020 Bentley Bentayga Hybrid is less efficient on the highway than V8 version

Official EPA fuel-economy ratings are out for the 2020 Bentley Bentayga Hybrid, the luxury brand’s first electrified offering, and they donÂ’t exactly bathe the crossover in a green light. As spotted by Green Car Reports, the plug-in performs worse on the highway than its V8-powered combustion sibling. The EPA rated the Bentayga Hybrid as delivering 18 miles in all-electric range, which is two miles more than Bentley previously touted, and a combined 19 miles per gallon in hybrid mode, which is indeed the most efficient of the three Bentayga versions offered. ItÂ’s rated at 17 mpg city and 21 on the highway. By contrast, the 4.0-liter twin-turbo V8 version of the luxury crossover offers just 17 mpg combined, yet it delivers 23 mpg on the highway. Its overall EPA-rated highway range also beats the Hybrid, at 518 miles to 430 miles on a full charge and tank. The Bentayga Hybrid combines a turbocharged 3.0-liter V6 and a 94 kilowatt electric motor that also functions as a generator. The system combines for 443 horsepower and 516 pound-feet of torque, with a 5.2-second 0-60 mph time. It sends that through an eight-speed automatic transmission driving all four wheels. Curb weight is a hefty 5,709 pounds. Base price starts at $160,000. The V8, by comparison makes 542 hp, nearly 100 more ponies, and 568 lb-ft, with a 0-60 mph of 4.4 seconds. It will set you back $171,025. At any rate, both versions are well below the 27 combined mpg of the average 2020 vehicle, according to the EPA. The HybridÂ’s fuel economy ratings suggest that buyers may be motivated less by concerns about carbon footprint than conveying the appearance of having those concerns. Bentley has said its first full electric vehicle will be a dedicated model that will arrive in 2025 at the earliest, and possibly with a solid-state battery pack. Related Video:

Bentley to retire aging 6.75-liter V8 with current Mulsanne

The massive 6.75-liter V8 in the Bentley Mulsanne is one of the oldest engines still in production. But it may not be around for much longer. According to Car and Driver, Bentley intends to finally put the big old pushrod V8 to pasture once the current Mulsanne is phased out, thus putting an end to a saga that goes back some 57 years. Powerful as it may be, ever-stricter exhaust emissions and fuel-consumption regulations will see that the L Series V8, originally introduced way back in 1957, doesn't stay in production forever. Whenever the Mulsanne is replaced, it will reportedly get a brand-new twelve-cylinder engine. Bentley is currently the world's largest producer of dozen-pot powerplants. Production of the British automaker's 6.0-liter twin-turbo W12 far outpaces anything from Rolls-Royce, Mercedes-Benz, BMW, Ferrari, or Lamborghini. Over the decades since its introduction, Bentley's long-serving V8 has gone from making an "adequate" amount of power and torque to an impressive 530 horsepower and a positively massive 811 pound-feet (with the help of a couple of turbochargers). Its eventual discontinuation wouldn't be the first attempt on the life of the 6.75-liter engine. When BMW briefly took control of both Rolls and Bentley, it replaced the big engine by a smaller 4.4-liter V8. Customer demand led Bentley to bring the old engine back. It will likely be some time before we get details of Bentley's next powerplant. Models like the Mulsanne and Rolls-Royce Phantom tend to stick around for a long time, and the latest version of Bentley's flagship was just released earlier this year. Related Video:

The next Bentley Mulsanne could go all-electric

How many Bentleys are sold in China, anyway?* That's a question worth asking after the company said it will consider switching the powertrain of its uber-luxe sedan Mulsanne to all-electric from its current gas-guzzling V8 setup. Such a switch would be in the name of adhering to stricter greenhouse-gas emissions limits, especially in countries like China. Bentley executive Hans Holzgartner told Autocar that the company may soon have problems selling a V8-powered Mulsanne in China because government regulators are attempting to push for more zero-emissions vehicles to combat smog problems in the country's largest cities. Oddly, Holzgartner said an electric powertrain is "better suited" to heavier luxury cars than lighter sports cars because of an electric motor's smooth, instant delivery of torque. With the Mulsanne already priced north of $300,000 in the US, passing on the costs of such a huge battery pack will probably be less of an issue than for more typically-priced models. Of course, there would be a ton (almost literally) of battery cells involved. The Mulsanne tips the scales at almost 6,000 pounds, or almost twice the weight of a Nissan Leaf and about 25 percent more than a Tesla Model S. For those curious how the one-percenters live, take a look at Autoblog's recent drive of a Mulsanne Speed. Since this is just being studied at this point, it's possible the next Mulsanne could get a battery-electric or plug-in hybrid version for certain markets, while others would retain a gas engine or offer a choice. Assuming it keeps the gas option, the next Mulsanne will reportedly to switch to a twelve-cylinder engine, likely a version of the Volkswagen Group's W12. As for green cred, let's just say the Mulsanne's couldn't be much worse. Earlier this year, the Mulsanne showed up on the American Council for an Energy-Efficient Economy's (ACEEE) annual list of "meanest" vehicles when it came to environmental sustainability. The Bentley was rated the fourth-meanest vehicle sold in the US, following the Mercedes-Benz G65 AMG, the Chevrolet G2500 Express/GMC Savana, and the Mercedes-Benz G63 AMG. The EPA rates the Mulsanne's fuel efficiency at an absolutely gasoline-swilling 13 miles per gallon combined. * If you're curious, Bentley sold 1,615 cars in China last year. Related Video: Featured Gallery 2017 Bentley Mulsanne: First Drive View 24 Photos News Source: Autocar via Hybrid CarsImage Credit: Drew Phillips Green Bentley Electric