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

EBay exotic: 1972 Fiat 850 Sport Spider

Exotic might be a strong term for a Fiat, but when’s the last time you saw a nice 850 Spider? Our friends at Bring a Trailer spotted this gem on eBay Motors in what appears to be surprisingly good condition, particularly since these little Italian roller skates turned to dust upon contact with any form of moisture. The year and Sport moniker indicate that this is the more powerful, revised 850 delivering 52 hp from its rear-mounted 903-cc I4.

Citroen C4 Aircross

The sister car to Peugeot's 4008, the C4 Aircross is Citroen's attempt at injecting its DNA into a SUV. We say 'injecting' because, as with its predecessor the C-Crosser, this car comes from a joint venture between PSA and Mitsubishi and – if you look closely – you'll see this car shares its roots with the Mitsubishi ASX. Regardless, Citroen claims the Aircross redefines the conventional cues of compact SUV design...

McLaren MP4-12C to cost £168,500

McLaren will charge £168,500 for the MP4-12C supercar in the UK. That's the new 2011 price, including the rise in VAT from 17.5% to 20% from 1 January. Today's news means that the MP4-12C will cost £1000 less than a Ferrari 458 Italia, its arch rival, at existing tax rates.