Skip advert
Advertisement

378bhp Mercedes B-Class revealed

Mercedes-Benz B-Class MPV gains rear wheel drive and 378bhp. Meet the monster B55 V8

Mercedes has unveiled a 378bhp B-Class. It’s the bright idea of a group of Daimler apprentices, apparently, who thought shoehorning a stocky V8 engine into the front of a mini-MPV to be a brilliant thing to do. And we’re inclined to agree. A regular diesel B200 had its sensible power source removed, a 5.5-litre V8 from the E500 taking its place. The B55 serves up 378bhp and and 391lb ft of torque, which are sent to the rear wheels (after a conversion from front-wheel drive) via Merc’s seven-speed G-tronic gearbox. Top speed is limited to 155mph though 0-62mph takes just 5.2sec – around half a second quicker than a 345bhp Ford Focus RS500 manages, putting it in prime position to be the quickest hot hatchback on sale. Though sadly (and all too predictably) the Mercedes B55 is not for sale – it’s a one-off for now. But with an all-new B-Class due in the near future, keep your fingers crossed those dozen apprentices can influence their bosses further…

Skip advert
Advertisement
Skip advert
Advertisement

Most Popular

Kia K4 2026 review – can it fill the gap left by the Ford Focus?
Kia K4 – front
Reviews

Kia K4 2026 review – can it fill the gap left by the Ford Focus?

With Ford killing the Focus, there’s space in the market for a semi-premium family hatch to take on the Volkswagen Golf. Kia hopes to fill it with the…
23 Mar 2026
Peugeot’s new petrol engine swaps belts for chains to improve reliability
Peugeot Turbo 100
News

Peugeot’s new petrol engine swaps belts for chains to improve reliability

New engine isn’t performance-oriented but does address some reliability issues around so-called ‘wet belts’, swapping them out altogether for chains
16 Mar 2026
My Audi S8 started acting possessed, until I found the culprit in the back...
Audi S8 – front
Long term tests

My Audi S8 started acting possessed, until I found the culprit in the back...

Our Audi S8 was showing signs of being haunted, but the mystery has finally been solved
23 Mar 2026