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

Alfa Romeo 4C to spearhead marque's return to the US

Alfa Romeo is coming back to the U.S. this summer, and at next month's New York auto show the company will present the 4C Coupe to the American public. We need to take a step back to point out that even though the Alfa Romeo 8C Competizione was officially sold on our shores in a handful of locations (to a smattering of well-heeled buyers), the automaker's planned return this summer will offer cars for--ahem--a slightly larger audience.

Australian couple breaks Guinness record for fuel economy

An Australian couple has broken their own record for fuel economy, light-footing it across the lower 48 American states to the tune of 67.90 mpg. Helen and John Taylor beat the mark of 58.82 mpg that they set last year, landing them again in the Guinness Book of Records. They drove a 2009 Volkswagen Jetta TDI for both runs.

Pagani Zonda Revolucion (2013) first pictures of ultimate 790bhp Zonda

Is the new Pagani Zonda Revolucion the Nurburgring lap-record holder in waiting? The Zonda Revolucion (Revolution in Spanish) is a fettled version of the track-only Zonda R, boasting more power and F1-derived brake and aerodynamic know-how. It should easily be able to eclipse the Zonda R's record-breaking 6min 47sec Nürburgring lap time, but you’ll need fast money, too. Available to order now, the five Revolucions being produced will set you back an eye-watering €2.2m (£1.8m) each – plus taxes – and you still can't drive it on the road… For £1.8million, the Pagani Zonda Revolucion had better be packing some serious punch… Worry not: the mid-mounted 6.0-litre AMG V12 (normally aspirated still, rather than twin-turbocharged like the new Pagani Huayra in CAR's video review below) develops 789bhp – a 50bhp increase on the 2009 Zonda R's output.