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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.

GM greenlights Chevy Spark, Orlando for production

Two more fuel-sipping Chevrolets will be coming to North America in 2011. The Chevy Beat concept is now called the Spark, and along with the Orlando multi-purpose vehicle, has been greenlighted for production. They will be sold around the world, including in the United States.

Nissan Juke Nismo RS at 2013 Los Angeles Motor Show

Nissan Nissan picked the Los Angeles show to reveal a pumped-up Juke Nismo RS version of its popular shrunken crossover. This is the US-spec Nismo RS and changes are likely to be made before it went on sale in the UK, according to officials in LA. The car you see here will go on sale in America in December 2013 and it's likely to jump over the Pond in 2014.