Swing Car
 

Lots of other names for it (wiggle car, zoomerang etc)

Can I borrow someone's child please? I really want one of these cars and it might look a bit odd if I play in the street without an attendant child.

Sorry for the lousy quality of the clip, it's just the most comprehensive one I can find.

You can have my two and I will throw in two swing cars :)

fuck these... i want my cozy coup back.