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Watch: 2014 Ram 1500 EcoDiesel video walkaround

Mike Cairns, chief engineer for Ram, says that people just can't help but pester him with the same damned question: “Why don't you put a diesel engine in a 1500?” Thanksgivings were, we imagine, brutal. The coming 2014 Ram 1500 EcoDiesel ought to steer family dinners back to less abrasive topics, like partisan politics. Get an up-close look at the truck in this video walkaround hosted by none other than Cairns himself.

Concept Car of the Week: Mitsubishi HSR (1987)

In 1987, Mitsubishi initiated a range of concept cars called HSR (High Speed Research) with the intention of creating a futuristic vision for the brand combining advanced technology, efficient power and aerodynamic design. The first concept car was designed for safely cruising on the motorway at very high speed, thanks to cutting edge electronics. The car's internal computers measured speed, weather, driver input and grip, and adjusted the 4-wheel drive system and the 4-wheel steering automatically.

Red Bull X1 supercar (2010): the full technical spec

If god is in the detail, then this is surely quite heavenly: the full tech spec of the Red Bull X1. The X1 is the hypercar designed with the help of the Red Bull F1 team - and will star in the highly anticipated Gran Turismo 5 Playstation 3 game. The Red Bull X1 is exclusively revealed in the November 2010 issue of CAR, out now. Adrian Newey, designer of Red Bull's extremely fast but unreliable RB6, designed the X1 in conjunction with Kazanori Yamauchi, the brains behind the Gran Turismo computer games.