Hot Wheels cars from Mattel were first introduced in 1968, Mattel
releasing their first line of sixteen models of fantasy custom cars with
names like Python, Custom Cougar, and Hot Heap. The lowered front ends
and raised rear wheels was "California Custom", and in the case of the
1969 Corvette, this was the first real look for the public for the real
McCoy. Sales were excellent. By 1969, with sales 10 times higher than
anticipated, Mattel expanded its model line to 40. The next year, 1970,
saw 33 new cars, and 35 in 1971. This was also the last year that Hot
Wheels were made in U.S.A., and the first year that Mattel used the Hot
Wheels name as promotions at drag strips. 1972 was slow year, as the
cars did not sell as well, so only seven new models appeared.