Audi's performance-inspired S line enhances already impressive cars.
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The 2013 Audi S4 presents buyers with a unique proposition: a performance sports sedan with more performance than a BMW 3 Series or Mercedes-Benz C-Class.
The red carpet is set to be rolled out at the 2011 Frankfurt Motor Show, with contrast-stitched S-logo badges, if Audi can get its hands on it.
Audi finds itself in new territory in the luxury car wars