Audi has been stingy with the high-performance RS4 in the United States. Only the V8-powered B7 RS4 sedan and RS4 cabriolet ...
Shop new and used cars for sale from Auto House USA at Cars.com. Browse 24 available models.
The special RS6 GT not only looks meaner, it also packs a more powerful twin-turbo V8, adjustable coilover suspension, and a retuned Quattro sport diff ...
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