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Photos: Prototype concept cars

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Audi R8 V12 TDI concept
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May 8, 2008 12:04 PM PDT

Audi R8 V12 TDI concept

The current, gasoline-fueled V-8 R8 has proven a sales success for Audi, with demand outstripping supply. And with the new popularity of diesels and the fact that Audi has all the parts, the move to produce an R8 powered by a V12 turbo diesel shouldn't be too hard of a decision.

Photo credit: CNET Networks

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