First generation A4 chassis Audi A3s were not imported to the US, although the transverse 1.8T engine is common to the Golf/Jetta/Beetle/TT as well. The A5 chassis Audi A3 has a 2.0T engine in the US- very different from the 1.8T in that it has FSI, integrated turbo housing/exhaust manifold, etc. Taka