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

Volkswagen XL1

This, remarkably, is the production version of the Volkswagen XL1, the most fuel-efficient production car in the world, a car we'll see in Geneva in a little over a week. Barely changed from the concept version shown at the Qatar motor show two years ago, the production XL1 is the first production result of VW's 1-liter project – to design a car that uses less than 1l/100km (282.5mpg imperial) – that started with the lozenge-shaped, tandem-seat 2003 1L and the later L1 of 2009. The XL1 actually beats that by sipping just 0.9 liters with CO2 emissions of 21g/km.

Ultra-rare Steyr Puch 500 goes to auction

£18,000 might seem like a lot of money for a car based on the original Fiat 500, but this particular Steyr Puch example is one of just 33 ever built. Austrian firm Steyr Puch entered into an agreement with Fiat in 1954 after production was halted during World War II, and began production of the 500 under licence. Only 33 right-hand drive examples were ever produced, and of those only two survive; this example and one in the Steyr Puch museum in Austria.

Korean Grand Prix (2011) RESULT

Korean Grand Prix 2011 Last year’s Korean Grand Prix was more like a jaunt on the Solent than an F1 race, but the weather was a little more forgiving for the 2011 F1 Grand Prix, in the middle of nowhere in southern South Korea. Lewis Hamilton had obviously given himself a good talking to – or someone else had – as he displayed controlled aggression, and consummate skill, to take pole in Korea after his dismal series of performances of late. But all that effort was for nought as new world champion Vettel put him firmly in his place on the very first lap, never to look back.