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

New Audi S1: 231hp, sub-£25k price

Pictures and full details of the Audi S1 have been released ahead of the car’s public debut at the Geneva Motor Show next month. If the bright yellow colour of the car pictured doesn’t grab you, the stats probably will – this pocket rocket has four-wheel drive, a 0-62mph time of just 5.8 seconds and prices starting from less than £25,000 (just). Audi Audi S1: what's new?

New Bugatti 'could be too fast to test'

THE UPCOMING replacement for the world's fastest luxury car could be too quick to test, according to a motoring magazine. Bugatti is looking to replace the famous Veyron with a new, faster model that could reach speeds of around 286mph, but questions have been raised by weekly title Autocar over whether the facilities will exist to test it to its maximum. Not only is space a concern for the 1,500-horsepower concept, because it will need much longer straights than the Veyron, but also tyres are an issue.

Mazda SkyActiv technology goes on offer to raise funds

Mazda is looking to license their SkyActiv Technology to raise capital (CX-5 with SkyActiv pictured) Mazda are predicting losses for the current financial year of £750 million and are looking to sell their SkyActiv technology to raise cash. Mazda isn’t having the best of times at the moment, despite an impressive range of cars that are getting more interesting with Mazda’s SkyActiv technology, and are predicting that they will post a loss of around £750 million for the current financial year. There are a variety of reasons for Mazda’s financial predicament – including the strength of the Yen and the production problems after the Japanese Tsunami – but this is the fourth year in a row Mazda has posted losses.