I want to get into 1/8 nitro oval racing and am looking to have a few questions answered. What are main differences of the OFNA late model and the hyper sprint? Are there any differences in the hyper sprint rtr vs. the hyper sprint kit? I am on somewhat of a budget, but are there any other brands of 1/8 nitro oval racers out there besides Losi? What is a decent motor for oval racing .21-.28? I appreciate any other info you guys can give me.

Thanks
Jeff