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

Jaguar XK leaves the lineup

Production of the Jaguar XK stretched from 1996 with the XK8 and will wrap up as the final 50 limited edition XK models roll off the assembly line this summer. The farewell XKs will be branded as "Final Fifty Limited Edition" cars, and will carry the same specification as the current XKR model, along with some added features that celebrate the history of Jaguar and the evolution of the brand's grand touring coupes and convertibles. Under the hood, a supercharged 510-hp 5.0-liter V8 is capable of bringing the XK to 60 mph in 4.6 seconds according to Jag, and an active exhaust system helps ensure the engine note remains prominent.

Forget high beams -- lasers are coming

Audi has kicked off 2014 with the unveiling of an updated version of its Sport quattro concept car -- as first revealed at last year's Frankfurt motor show. Set to underpin the German carmaker's stand at the upcoming Consumer Electronics Show in Las Vegas, the latest incarnation of the bullish-looking two-door coupe showcases distinctively styled matrix LED headlamps with new laser light technology that, Audi officials suggest, will soon begin appearing on regular production models as a high-cost option. Already confirmed for the Audi R18 that will compete at the Le Mans 24-hour race later this year, the new headlamps use matrix LEDs and an aperture mask for low-beam mode.

McLaren unleashes its new round of MP4-12C test prototypes

The finish line is in sight for development of the next McLaren supercar, the MP4-12C. The project has entered the final phase of testing with a new round of prototypes that feature significant advancements from last year. McLaren released film on Tuesday of two versions of the new testers, called the XP8 and the XP10, which it says are in the "beta phase" of development.