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

British Grand Prix 2011: Button and Hamilton's video guide

Where will you be Sunday lunchtime? Anyone who's even remotely interested in Formula One will be in front of the TV getting psyched up as 12 F1 teams take to the world’s fastest circuit.  Yes, 15 weeks in and 22 of the finest F1 drivers will be lining the grid, thinking about how they will tackle Abbey, the first right-hand corner, the fastest corner on the track where the drivers experience a peak G-force of 4.8g and over 4g for 1.3 seconds! At which point the car is experiencing two and a half times its weight in downforce through the corner.

Peugeot 308 GT THP 200 (2010): a quasi GTI

Peugeot is 200 years old this month, so what better way to celebrate than launching a 200 horsepower warmed-up hatch. The new 308 GT THP 200 five-door pictured costs £21,995. Not quite as much sparkle as the RCZ, but that's why it's not badged GTI, in the UK at least.

Mercedes CLA starts to roll off production line in Hungary

The Mercedes CLA – the baby Mercedes CLS based on the new A Class – has started to roll off the production line at Kecskemét in Hungary. But that’s probably unfair; based as it is on the new A-Class, the CLA is a very good car under the skin, even if its big USP is the dramatic styling. Now, just over a week after the CLA got its first public reveal (if you don’t count the Mercedes Concept Style Coupe on which its based), the first production car has rolled off the line at the Mercedes plant in Kecskemét, Hungary.