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

BMW M4 Convertible revealed. Price from £60,730

The BMW M4 Convertible (pictured) revealed We reported last month that the new BMW M4 Convertible would debut at this year’s New York Auto Show, and here it is ahead of that debut complete with trick folding metal roof, 425bhp and a price tag that just nicks over the £60k line. A direct replacement for the old M3 Convertible, the M4 Convertible will cost you just over £4k more than the M4 Coupe, but for the extra money you get the same car but with infinite headroom – and a big weight penalty. The new 3-piece metal folding roof can be tucked away in a mere 20 seconds at the flick of a switch, with better noise insulation than the M3 Convertible had and more room in the boot when the roof is down too.

Would you get into a cab that looks like this?

Nissan is hell-bent on taking over the world's taxicab fleets with its NV200 van. First, it invaded New York with a thoughtfully redesigned, nearly luxurious yellow cab, all but ready for its hard-earned medallion (but not quite). It hopes to fare better in London, seeking a place among the 22,000 black cabs that fill the city's streets.

Lamborghini LP640 Roadster (2006): first official pictures

By Phil McNamara First Official Pictures 29 November 2006 11:10 Lamborghini LP640 Roadster: the lowdown Lamborghini has given its flagship Murcielago – the LP640 – the open top treatment. Conceptually, the Roadster offers no surprises, but its spec is no less breath-taking and its looks truly put the super into supercar. Named after the power output of its uprated V12 in PS, the LP640 has numerous cosmetic tweaks including revised rear lamps and bespoke 18inch rims, and a thorough engineering overhaul.