New Audi RS6 Sedan Revealed, Gets 580 HP Twin-Turbo V10

Unlike BMW that introduced the M3 Sedan only to replace it a few months later with a facelift version, Audi patiently waited to present the revised A6 range (see details here) before it unleashed the almighty RS6 Sedan. Like the new RS6 Avant that was unveiled at last year’s Frankfurt Motor Show, the RS6 Sedan packs a twin-turbocharged 5.0-liter V10 engine that delivers an output of 580 HP