First Drive: 2011 Jeep Grand Cherokee and Wrangler Unlimited diesels

The Europeans have just been shown their next-generation Jeep turbo diesels and we had a chance to sample these latest and greatest oil-burners at the Fiat Auto proving grounds in Balocco, Italy.

Why Cadillac hasn't found success yet in World Challenge Series, and why it's not giving up

The last time Cadillac lined up for the World Challenge Series from 2004 to 2007, it was competing with the CTS-V sedan. As put by an understated Jim Vurpillat, Cadillac's global head of marketing, "We've been here before and had some success."

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