Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

New Mercedes B Class Hydrogen Fuel Cell delayed until 2017

Mercedes has decided to delay production of its B Class Hydrogen Fuel Cell car until 2017 as it seeks partners for economy of scale. We learnt last year that the new Mercedes B Class would spawn a version powered by a hydrogen fuel cell, and that Mercedes were planning to launch it in 2014. But that’s now been pushed back to 2017.

Concept Car of the Week: Pininfarina Peugette (1976)

Unveiled in 1972, the Peugeot 104 was a compact car with a simple and honest design by Paolo Martin. The most powerful ZS model was more of a warm hatch than a hot one, but it did feature a 1124cc engine with 66bhp. Thanks to the car's weight of only 760kg, the car could reach speeds of up to 100mph - terrifying in a 104.

BMW M3 engine shown

By Ben Barry Motor Industry 23 March 2007 01:18 BMW has revealed detailed specs on the all-new 4.0-litre V8 that’s soon to be slotted into the all-new M3. Power is confirmed at 420bhp with 295lb ft peak torque available from 3000 to 7000rpm. The engine – made at the same foundry as the BMW Sauber F1 team’s V8 and derived from the same architecture as the M5 and M6 V10 – looks set to dispel any fears M purists may have had that the M3 would be transformed into a nose heavy, slow revving behemoth.