What is it?
Well, among coupés it’s a rarity. One of the first things you’ll notice about the new BMW 840d xDrive Coupe, once you start looking for decent diesel coupé rivals in its £75,000 price category, is that there aren’t any.
True, there are one or two sleek four-doors in the price ballpark, such as the Porsche Panamera. And the most powerful Audi A7 TDI Sportback packs nearly as much diesel punch at a lower price. But there are no honest-to-God coupé rivals. Not with this car’s neat mix of luxury and sportiness. All of which makes the 840d either a welcome rarity or an irrelevance, depending on your attitude to buying a new diesel car as we look down the barrel of the 2020s.
The obvious headline grabber in this new two-car line-up is the 523bhp twin-turbo V8 M850i that offers acceleration in the supercar class but can’t cruise nearly as far on a tankful and has a £24,000 higher starting price. The V8’s performance margin is something only a few owners will ever use, given that the calmer 3.0-litre, 316bhp 840d can still lay down a 4.9sec 0-62mph time, and matches the M850i’s governed 155mph top speed.