If it is indeed true that Polaris and others are coming out with new turbo cars, those with older cars must be allowed to retrofit a factory replacement turbo engine/belt/trans,etc. There is no way the little guy (non-factory or not wealthy) can afford to build a new car every 1 - 2 years at 60k-80k a pop. The majority of current racers would be faced with deciding among four options; (1) Build New Car, (2) Retrofit, (3) Run at the back of the pack or (4) Quit. Those that say the turbo is not an advantage....just wait and see what the extra 30-50 hp provides over an entire season. 90 mph is quite different than 75 mph.