XK120 children's car $37k

A perfect condition one of these sold at Sotheby’s “Elkhart Collection” auction last week for $37,200 including commission. They were about $20,000 new a few years ago.
These were sold by Harrington, have gasoline engines, and a small adult can drive one.
I dropped out of the bidding at $15k, so now I’m on the hunt for one.