Target.com has Hot Wheels Flying Customs Sto & Go Trackset w/ 5 Cars on sale for $29.99. Shipping is free w/ RedCard or $35+ orders.
This set is pretty similar to the Hot Wheels Sto & Go sets that they had in the 80s. Was one of my favorite toys as a kid. Sale ends today.
The set includes 5 Hot Wheels Cars too.