The 9 hp class is a very good class. Tight racing, and, as you said cheap.
Too bad the 13 hp sprint car class didn't work out, they had identical motors to the trucks, only on the sprint chassis, weighing way less (I think about 200-250 lbs less??) and costing less, as they didn't have suspension parts and body work to worry about. They were every bit as fast or faster than the trucks for exactly the same price of a 9 horse car, the difference maybe being 200 dollars more for the larger engine at max. I think 4 grand would easily put you out front in that class. Too bad that class isn't still around.
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