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Hyundai Hexa Space concept

Hyundai debuted its Hexa Space concept at the Delhi Auto Expo, where its claimed this design revolutionizes the use of interior space. Externally, the Hexa Space evolves Hyundai's Fluidic Sculpture design language. While its lower body is reminiscent of last year's Curb concept, the more angular surface treatment marks a new direction for the brand.

Mazda brings diesel back to Indy with 6 Skyactiv-D

Diesel has enjoyed great success lately as a racing fuel, but there's one place it hasn't appeared for more than six decades: Indianapolis Motor Speedway. Mazda's breaking that dry spell this weekend, when its Mazda 6 Skyactiv-D race car will head to Indy for the Grand-Am race. We like the 6 in both road trim and racing livery, but that previous diesel-powered racer -- the Cummins Diesel Special -- is pretty neat too.

U.S. says 90 percent of clunker claims have been approved

The U.S. Transportation Department says it has paid or approved $2.6 billion in cash-for-clunkers transactions, or 90 percent of the $2.9 billion submitted, as accelerated payments to dealers continue. A total of 534,598 claims for $2.3 billion were paid as of Sept.