It's been over a decade since Audi offered an RS6 in the United States. The C5-generation RS6 sold in the early 2000s uses a Cosworth-developed twin-turbo 4.2-liter V8 engine making 450 horsepower, and looks fantastic. The only issue? It was only sold with an automatic.
If the transmission is the only thing holding you back from pulling the trigger on an RS6, this car could be the one for you. It's a dark blue RS6 that's had its automatic replaced with a six-speed manual transmission, currently for sale with three days remaining.
In addition to the manual swap, the owner also added bigger turbos, a methanol injection system, ceramic exhaust manifolds, KW coilovers, and an adjustable mapping system controlled via the cruise control lever. The car now makes an estimated 650 horsepower.
Modifications aren't the only thing to this RS6. The seller has done a ton of recent maintenance, including replacement of the timing belt, water pump, battery, brake system, engine mounts, transmission mounts, and tires.
Despite all of these updates, the car still looks just like any other old Audi. It's a true sleeper, and with the addition of that six-speed, should make for an impeccable driving experience.