The extreme Audi TT Ultra Quattro concept sheds 660 pounds over the regular TT S coupe making it one of the most extreme TTs ever created.
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Audi’s TT sports car might be getting old but the German automaker isn’t yet finished with showcasing just how capable a performance platform it can be. After the TT-RS, Audi has switched gears for a new concept car called the TT Ultra Quattro, retaining the base car’s 4-cylinder powerplant while shedding over 600 lbs.