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

Acura NSX prototype will drive Mid-Ohio prior to IndyCar race

Acura's new, long-awaited NSX is still two years from arriving in customers' impatient hands, but attend the Izod IndyCar Series race at Mid-Ohio on Aug. 4 and you'll have the opportunity to see and hear the car in action. Acura on Thursday released an image of a prototype NSX, and said the car will take to the racetrack just prior to the Honda Indy 200 in Lexington, Ohio.

Concept Car of the Week: Citroën C-Airdream

In the 1990s and early 2000s one of the most charismatic, brave and forward-thinking car makers, Citroën, had been reduced to the maker of budget, mainstream Euro boxes such as the Saxo and Xsara. The company hinted at its intentions to break free from its mundane existence as the maker of line-of-least-resistance rental cars with its Lignage concept in 1999 that harked back to its past large sedans, especially the CX. But it was at the 2002 Paris motor show that Citroën put a stake in the ground with its fabulously avantgarde Citroën C-Airdream concept.

Enterprise will rent you a Harley-Davidson

If you're in the unenviable position of having to rent a vehicle while traveling, and Hertz's Penske GT Mustangs or dream cars aren't quite your style (or within your budget), you're now able to free yourself from caged drudgery and rent a motorcycle from Enterprise. If you're headed to Las Vegas, at least. Enterprise isn't the first company that will rent you a two-wheeler (Eaglerider, for example, has locations across the globe) but does seem to be the first major auto rental business to diversify into motorcycles.