I have an 05 mazdaspeed version, factory turbo, belstien shocks, stiffer and lower springs, extra bracing for the added power. Has a shot and pinned drive train, tranny, drive shaft and rear LSD diff. I've added some bolts on, pushing about 195HP to the wheels get an average of 24 mpg. Awesome lil car, I drive with the top down every day. I use a saris bones rack. No hitch rack because I'd have to trim my rear bumper which is different the normal miatas. Only thing that sucks is removing the bike rack every time I ride. I don't leave it on there cuz if it is ever stolen, the bike will have to taken apart a lot to get home and isn't worth the risk for me. I like the fact that after I ride the bike up the mountain, I can throw the top down and drive the mountains afterwards. Done that at gmr and the Santa Monica's