Corvette Auto Speedometer Drive Gear C4 on 2040-parts.com

Video: How DGT Architects created Renault's Paris show stand

The creators of the Renault stand at this year's Paris motor show have released a video explaining how they created one of the most popular show stands in recent years. The DGT Architects-designed Renault stand – named ‘The Bump' – was one of the stars of the show this year with its curves and lighting drawing praise and attracting admirers from across the event.  A total of 388 large squashed light globes that softly glowed a variety of colors were hung from the ceiling and simulated the movements of waves as they illuminated the stand below. To convey a sense of motion to the cars underneath, DGT used the movement of the lights and the creation of two hills.

2013 SRT Viper packs devilish details

The 640-hp V10, the curvy fenders, heck, even the carbon treatments—there are enough spotlight features on the 2013 SRT Viper to outfit two or three sports cars of lesser pedigree. While the potent engine and the striking design are clearly the signature elements of SRT's macho machine, there are a few subtle design cues lurking inside for sharp-eyed enthusiasts. Let's call them Easter eggs, and they're intricate yet intriguing.

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.