For those that are looking to relive their childhood with the Thundershift 500, but can't find it or aren't willing to pay $80+ dollars for one on eBay... Target has a How Wheels track that is similar to the Thundershift 500: Hot Wheels Race Aces Speed Shift Raceway. It's not exactly the Thundershift 500, but now it's very challenging and I think it's even more fun than the Thundershift 500 because I can let my sons use it the less challenging way while I try to match them by doing it the more challenging way. They usually beat me.