my xxx-4 is much faster than my hyper 8 on the most all tracks speed isn't the issue.. 1/8th scales are really tough though.. the slightest thing and the xxx-4 is broken... i think we all like the mechanical aspects of rc cars so you have to respect a nitro vehicle... to have a combustible engine that small that makes so much power and thats reliable.. then again nitro is my most recent vehicle and i cant seem to get enough all i want to do is hang at the rc track.... when i run my xxx-4 it isn't as fun.