Soopa Coopa that is :)
1972 on the base but I don't know what year it was actually released.

http://racegrooves.com/hb/fea/_img/MB/SoopaCoopa01front.jpg

http://racegrooves.com/hb/fea/_img/MB/SoopaCoopa02rear.jpg

nice. i always wanted one of those...ahhh eBay

This model was released in 1973 replacing the Cattle Truck. It was blue (shades from a medium to dark blue with the amber windshield being either lighter or darker amber). In 1976 the color finally changed to a pink before the Skip Truck replaced it in 1977.

So the one you have is from either 1973, 1974 or 1975.

:) :D :p