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

One Lap of the Web: KERS, Klass and autonomous cars

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- KERS, the kinetic-energy-recovery system, was first seen in Formula One a few years back.

GM, Koenigsegg sign deal on Saab sale

General Motors Co. reached a deal Tuesday to sell its money-losing Swedish subsidiary Saab to Koenigsegg Group AB. The companies signed a stock purchase agreement that would give the tiny Swedish supercar maker 100 percent of Saab's shares, GM Europe said in a statement.

Alfa Romeo 4C convertible likely for 2015

Conventional wisdom holds that if you want to take on Porsche's 911, you need a convertible variant. And although Alfa Romeo's often marched to the beat of a wonderfully idiosyncratic drummer, it sounds as if it's hewing to general sporting-car rules of thumb with the 4C. According to a report in Britain's Autocar, sources have confirmed that a 4C convertible will follow the launch of the coupe by about a year.