Specs on the SpeedSTR.
http://speedwayentertainment.com/specifications.htm
I've seen them run about 5 or 6 times over the past couple seasons. Not in the same league as a full midget, but still a pretty neat class. Car counts are always good in the upper 20's to mid 30's. As for looks I find them a bit hard on the eyes, but the racing I've seen has always made up for that.