Ask and you shall receive. But it was about a Ford, not a Chevrolet....

A little Gas, A little Oil
A little Spark, A little Coil
A little Tin, A little Board
Put them together and
You have a Ford.
 
and one more song my Dad sings....
while I still remember it...
 
I had a little chicken and he wouldn't lay an egg,
so I poured hot water up and down his leg,
well the little chicken cried & the little chicken begged,
and the pour little chicken laid a hard boiled egg.
(Dad, correct me if I'm wrong.  Pam )