From the 6" series, a 1962 Ford Econoline Pickup, made from 1962-1969. Came in Red, Yellow, Orange and Blue. Also came with some tow alongs. Notice the wheel wells are covered, it was a cost cutting measure, easier to mount the axles.

http://home.centurytel.net/geralde61/tteco1.jpg
http://home.centurytel.net/geralde61/tteco2.jpg
http://home.centurytel.net/geralde61/tteco3.jpg

Yep, sure would be hard to turn, wouldn't it?

It's got Fred Flintstone brakes too!

A '60 Chevy El Camino about the same size:

http://i20.photobucket.com/albums/b228/PropMonster/ToyAuto_Tootsie/TootsietoyElCamino.jpg

I also like the shape of this smaller but same vintage Ford pickup, I can see you have one of these too!

http://i20.photobucket.com/albums/b228/PropMonster/ToyAuto_Tootsie/TootsieFordPickup.jpg