2009 Harley-davidson Sportster 1200 Nightster Xl1200n Aftermarket Handlebars on 2040-parts.com

Ford offers body shells for those who want to restore the classic '60s Bronco

One of the forerunners of the SUV craze, the classic 1960s Ford Bronco, is getting a new life. Ford will begin offering body shells for 1966-70 models later this fall, and they're aimed at enthusiasts who want to upgrade, soup up or improve their aging off-roaders. Look for the Bronco shell to make an appearance at SEMA this fall, perhaps with an EcoBoost engine underhood.

Concept Car of the Week: GM-X Stiletto (1964)

With dreams of flying cars as the ultimate inspiration, General Motors designers in the ‘60s used every trick possible to make their creations appear as though they were floating – long, straight bodies, wheels pushed in and hidden away, large fins and lights that looked like rockets. As William L. Mitchell took the reins of GM Design, he brought a more high-tech approach, with simpler surfaces, a more restrained use of chrome and a general sense of elegant simplicity.

Mercedes AMG GT gets new 503 bhp Twin-Turbo 4.0 litre V8 (video)

The new Mercedes AMG GT (pictured) gets the new 503 bhp Twin-Turbo 4.0 litre V8 We’ve speculated that the new Mercedes AMG GT – and, for that matter, futures ’63′ AMGs – will get a new twin-turbo V8 to provide the power as Mercedes look to move away from the naturally aspirated 6.2 litre V8 in cars like the SLS. And this is it. A new 4.0 litre twin-turbo V8 – the M178 engine – has been developed to replace the 6.2 litre V8 and, in initial tune, develops 503 bhp at 6250 rpm and 479lb/ft of torque from just 1750 rpm.