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

Win a ride in the Honda FCX Clarity fuel cell

CAR has a rather special eco treat to offer to one lucky reader – a chance to ride in Honda’s FCX Clarity. Not heard of the FCX Clarity? Well you should have because it’s the world’s first serious hydrogen-powered car (only water is emitted from the exhaust) and a few lucky Californians and Japanese currently get to lease one as part of Honda’s research, even though they’re worth about £1m each.

Nissan LEAF becomes London Taxi

Nissan has been ferrying Londoners and tourists round the capital in the Nissan LEAF EV free of charge as part of its ‘Big Turn On’ campaign. Yesterday we reported that a Nissan LEAF was going to go backwards up the hillcimb at Goodwood in a bid for a reversing speed record, and to draw attention to the LEAF’s strengths as part of Nissan’s ‘Big Turn On’ campaign. We’re not too sure how being able to go backwards as quickly as you can forwards in a LEAF is a big selling point, but Nissan’s stunt in London this week is far more relevant – they’ve been offering fee taxi rides in the electric LEAF to tourists and Londoners alike.

BMW Alpina D3 Bi-Turbo (2013) at Frankfurt motor show

If a collection of numbers dictated how we ranked and rated a car, the new BMW Alpina D3 might just be the best all-rounder in the world. You’re looking at a discreet and comfortable 3-series that’ll return a claimed 53.2mpg, and scorch to 62mph in just 4.6 seconds, quicker than the outgoing BMW M3. Read on to find out how.