The continued downward spiral of emissions isn’t limited to the more popular fleet models because the niche players are also getting in on the act.
BMW‘s new 6-series Coupe is available with what the company describes as the world’s sportiest diesel engine. The 313hp 3.0-litre twin-turbo unit in the 640d is capable of taking the car from 0-62mph in just 5.5 seconds. That’s all well and good, but it also manages to return 51.4mpg and offers a CO2 emissions figure of just 144g/km, less than a 2.0-litre diesel Kia Sportage.
The 640d is a rapid, handles well and is about as practical as a coupe comes, with decent rear passenger space and a 460-litre boot. Good levels of standard equipment include a leather interior, eight-speed automatic transmission, satellite navigation, Xenon headlamps and front and rear parking sensors, while the £4665 M Sport pack adds muscular styling, sports seats and a host of premium detailing. At more than £66,745 the 640d is not cheap, but those that can afford it are getting quite a car.
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