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Audi S4 caught testing, could come with blown V-6

The next-generation S4 sedans from Audi's quattro division will likely be powered by a supercharged, 3.0-literV-6 instead of today's naturally-aspirated V-8when it appears in 2010, according to recent reports from Autocar and other media outlets.

Recently, the new S4 was spied doing high speed runs on the Nurburgring, but it reportedly lackedthe throaty growl usually associated with the all-wheel drive V-8 sedan.

A supercharged V-6 makes sense when considering that Audi has its sights squarely on the 300-horspower BMW 335i turbo.And as the CAFE age dawns and fuel prices continue to rise in both the U.S. and Europe, ablown V-6, along with a reduction in vehicle weight,would also be a way to slightly improve fuel economy and efficiency of the S4,leaving the high-horsepower, M3-fighting to its bigger RS4 offering when it arrives in 2011.

Source: Autocar