Complex sentence: For each of its two generations, the TT has been available in as a 2 +2 Coupé and as a two-seater roadster employing consecutive generations of the Volkswagen Group A platform, starting with the A4 (PQ34).
Split into simpler sentences: For each of its two generations, the TT has been available in as a 2 +2 Coupé and as a two-seater roadster. They TT has employed consecutive generations of the Volkswagen Group A platform, starting with the A4 (PQ34).