I'm not sure about her 93 Impreza, but I had a 99 Impreza and it handled alright. There is no comparison between an SVX and an Impreza, unless it is a WRX or STI. If I were to compare my 99 Impreza to my 92 SVX, I would have to say my SVX makes the Impreza feel like a Neon. I don't really feel understeer or oversteer for that matter in my SVX, it is just a solid, balanced car. The weight distribution is 59/41, I had an RX-7 that was 50/50 and I don't feel a difference. Parts will cost a little more because of the car being so rare, but many years ago I paid $180 for Scirocco 16v plug wires. If you want to turn heads, you gotta be willing to pay the price. If you want an outside opinion on the SVX look here,
http://youtube.com/watch?v=dhQWpOyKMH0