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GM's Ed Welburn walks Jay Leno through the Elmiraj concept's design [w/Video]

General Motors' vice president Global Design Ed Welburn stars in the latest of the 'Jay Leno's Garage' YouTube series, running the talk-show host through some of the new Cadillac Elmiraj concept's design features and what it means for the brand's future. We get a look at all the classic Cadillac design cues such as the vertical headlamps and tail lamps as well as the central hard crease that Welburn says is "important in every Cadillac". Leno and Welburn then move onto the Elmiraj's features, such as the large doors' integrated handles and the slimmer A-pillars before a more in-depth look at one of the concept's most striking features – the grille.

The Woodward Dream Cruise with Ian Callum

Try describing the Woodward Dream Cruise—a pulsing expression of Amer-ican automotive enthusiasm condensed into an endless, eight-lane traffic jam—and your audience will fall into one of two groups: The ones who shrug it off as inexplicable gasoline-fueled hysteria, or the ones who simply embrace it as the day-long automotive flash mob it is. Ian Callum, principal designer for Jaguar, falls firmly in the second camp. That's right.

BMW to build Gran Coupe to challenge Mercedes-Benz, Porsche

BMW will build its Gran Coupe concept car, the company's development chief Klaus Draeger said. The production Gran Coupe will rival luxury coupe-styled four-door cars such as the Mercedes CLS, Audi's upcoming A7 and the Porsche Panamera. The concept was unveiled at the Beijing auto show in April.