I only bash and race SCTs on dirt tracks, but would say the Arrma Typhon 3s or 6s (1/8 scale though). I don't own one (have the Noto6s, Senton 3s and Infraction) but have read great things about it. Easily customizable. I love wrenching on Arrmas. The Senton 3s is awesome on dirt tracks. All depends where you plan on runnin' 'em at.