Well, if you want a go-kart then the Alfa Romeo 4C; the weight is going to be almost half the 3 series Coupe (some 850kg), RWD, 235HP, engine above the rear wheels,... sales begin in June 2013 (some 10.000€ cheaper then Porsche Cayman; the price should be in the same range as Audi TT or Mercedes SLK).
10.000€ is 13.000$
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