The Syclone is a fun truck. It shares a platform with the S-15, but it is very different. While the S-15 is a small work truck, the Syclone is in no way practical. It has a 500 lb payload, can't tow, and can't go off-road. It is meant to go fast, not work, it has different suspension, a turbo, drum brakes, an automatic transmission, and other modifications. The 6.2 and 5.3 are simply different engines in the same truck.