You can swap in any small block gm, using the stock fiero transmission (which apparently is stron enough to handle it), latitudally mounted behind the seats. Theres enough room for it lenghwise and widthwise because the fiero was designed to hold both inline 4s, and v6s. There are a bunch of outrageous bodykits for them (including lamborghini) you should go to v8-archie.com (the link I have listed up higher) and follow the links, theres tons of info to be had there.