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

Autoweek's Editors' Choice from the 2012 Paris motor show

Supercars lit up the City of Light as horsepower and performance took center stage at the 2012 Paris motor show, even as Europe's economic woes cast a dark shadow over the proceedings. Traditionally one of the most dazzling events on the automotive calendar, the show delivered again this year with extravagant reveals. While emissions and fuel economy remain crucial issues, the spotlight Paris debuts subscribed to a higher creed of performance.

Mercedes-Benz launches an iPad app that tours the redesigned CLS

Mercedes-Benz USA has released an iPad app for the redesigned 2012 Mercedes-Benz CLS that allows users to explore the car's interior and exterior and customize a vehicle. The app was created as a tool for dealership sales associates but it's open for consumers to use. It is the first installment in a series of 2012-model-year product apps available free through the Apple Store.

Mercedes introduces illuminated three-pointed star [w/video]

Illuminated badges and emblems on cars aren't a new idea – those old enough to remember will recall the warm glow of the old Wolseley grille emblems – but in recent history they have been the reserve of concept cars and the aftermarket. Mercedes is set to restart the trend however as it begins to offer an LED-illuminated star as a dealer-fit option on the E–, GL–, M– and CLS–Class. We've started to see lighting spill out onto the exterior of concept cars for a while and this move is sure to have other OEMs and aftermarket firms alike following Mercedes' lead.