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

Rosberg & Hamilton make it a Mercedes front row: Spanish Grand Prix (2013)

Maybe Lewis Hamilton wasn’t as daft as we all thought jumping ship from McLaren and heading off to Mercedes F1. When we all thought the Mercedes F1 team didn’t have a chance of doing anything special in 2013, Hamilton and Rosberg have proved the 2013 car is a strong contender, and in final qualifying for tomorrow’s Spanish Grand Prix they’ve locked out the front row. Hamilton’s team mate Rosberg beat him to pole position – his second pole in a row – with Red Bull’s Vettel having to settle for third place alongside Kimi Raikkonen’s Lotus.

Mercedes A-class at 2012 Geneva motor show

Mercedes whisked the covers off the new A-class on the eve of the 2012 Geneva motor show. As predicted, it's a lower, sleeker, more Golf-like alternative to the Golf, sitting 18cm closer to thetarmac. These first official pictures of the new 2012 Mercedes A-class prove the 'tallboy' look is over for good and the production car closely apes the look of the Concept A-class.

Concept Car of the Week: Pininfarina CNR-PF (1978)

In the 1970s alarm bells were ringing in the energy sector as a series of energy crises and rising fuel prices spiralled. The car industry was forced to produce a new generation of more efficient cars and designers were putting new models through wind tunnels to optimize their aerodynamic performance to reduce aerodynamic drag. Some pushed the limits further than others and none more so than Pininfarina, which designed a car that slipped through the air twice as efficiently than any other.