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

Mercedes-AMG CLE 646 Spezialanfertigung – AMG’s V8 is back!
Mercedes-AMG CLE 646 Spezialanfertigung
News

Mercedes-AMG CLE 646 Spezialanfertigung – AMG’s V8 is back!

The new era of AMG V8s has arrived, with a car that’s as cool as its name is weird
10 Sep 2026
BMW i8 (2014-2020) review – futuristic hybrid sports car now looks a bargain
BMW i8 review
In-depth reviews

BMW i8 (2014-2020) review – futuristic hybrid sports car now looks a bargain

The BMW i8 was a very different sort of 911 rival, not least because it used a hybrid system with a Mini engine mounted in the middle and a carbon tub
9 Sep 2026
Audi RS5 Review - the fast estate that takes the fight to BMW’s M3
Audi RS5 Avant
In-depth reviews

Audi RS5 Review - the fast estate that takes the fight to BMW’s M3

Hybrid power provides Audi’s new super estate with a class leading 630bhp, but it comes at a price. Well two actually
10 Sep 2026