* 2006 Dodge Caravan 1ck44bd5aa Right Rear, 3rd Seat Belt Assy. Gray on 2040-parts.com

GM to build eight-speed transmission in Toledo

General Motors is directing $204 million of a $2 billion investment in its U.S. plants toward building an eight-speed automatic transmission in Toledo. Automakers are turning to transmissions with more gears to meet more stringent fuel-economy regulations.

One Lap of the Web: Model S carbon footprints, 911 road trips and the Rover 3500

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. -- It's Tesla Model S owner vs.

Lamborghini Aventador J at 2012 Geneva motor show

There maybe other Italian sports car manufacturers looking to hog the limelight at the 2012 Geneva motor show (and Ferrari and its 730bhp F12 is one of them) but Lamborghini will vie for attention with the Aventador J. A two-seat, open top speedster based on the Aventador LP700-4, it has some intriguing bits of carbonfibre tech and highly individual design. Named 'J' after the FIA’s Appendix J that governs the tech spec of race cars in certain classes, it’s proper bedroom wall material – but little boys and girls are unlikely to ever see it on the road as it’s a one-off and will go to a lucky owner after its appearance at Geneva.