SAN ANTONIO Theyre fast, fun and battery-powered...no, were not talking about Mike and Fiona. Were talking slot cars, and theyre making a big comeback with todays kids. Carrera of America toymakers offers all kinds of racetrack racing slot cars. Mike and Fiona learned a little about them, then tried their hand at slot car racing. Watch the video above to learn more yourself, and watch the video below for Mike and Fionas race on set.