This is a really tough thing to do, but my top might be to rebuild an old muscle car.
Side note: I went to a shop in Dallas, TX yesterday that works in muscle cars. They had some insane builds; 1500hp Camaro, 1500hp Caddy wagon, 1000+ hp 60's camaro ($120 job added to a $70k car), 2 vettes being built to do the Texas 200, and several more 800+ hp cars. Nothing with less than 600 horses.