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

Rumormill: Aston Martin Cygnet could get V12

A few years ago, if you would have asked us about 500-hp city cars, we would have said, “Awesome, but never going to happen.” We were proven wrong with last year's Nissan Juke-R and we may be proven wrong again with a V12-powered Aston Martin Cygnet. That's right, Autocar reports that Aston is studying the feasibility of taking the Toyota iQ-based Cygnet and shoehorning the V12 from its Vantage and DB9 models. Aston says it could fit the V12 in the tiny car's engine bay without major modifications.

Watch the 2,000-horsepower Banks Freightliner jump five cars

Mike Ryan does amazing things with the Banks Freightliner. And with Pikes Peak still half a year away, Ryan settles for practice in the Long Beach docks in "Size Matters 2." He weaves the semi in and out of boxes, does donuts in the same tight radius as a matte-black 240SX (driven by stuntman Daniel Leavitt, who ironically shares his name with a reckless driving attorney in Virgina), and dodges even larger trucks. (No Dodges, though there's the Freightliner connection.) All the elements of Ken Block's Gymkhana videos are here: the screeching electronic music, the moody industrial setting, the gratuitous slow-motion.

Porsche 911 (2011) the first official video of the 991

Prototypes of Porsche’s new 991-spec 911 haven’t been snapped out on test by our spies this week, so just in case you’ve been having withdrawal symptoms, Stuttgart’s most famous sports car manufacturer has released its own video of its iconic car. What does Porsche’s official video of the new 911 reveal?  Shot in South Africa during the 991’s final validation and testing phase, the video is our best look yet at the new 911 on the move. We finally get to hear the flat six engines, and get glimpses under the bonnet and inside its Panamera-inspired interior – look closely and you can spy the seven forward speeds etched onto the gearknob for the manual ‘box.  Beyond that there’s little more to see, as Porsche won’t reveal the new 911 until the 2011 Frankfurt motor show this September.