Daffy duck tries to screw Porky Pig out of a job in "You Ought to be in Pictures"
I searched and searched for a youtube link but when I found it, youtube wanted to sell me the damn thing.
It's under 8 minutes and of course a great cartoon if you like cartoons, but what really caught my eye was at about 6:40, Porky racing to the studio passes;
1934 Buick Series 40
1936 Chevrolet Master
a couple 1935 Fords
1937 Ford
1937 Packard One-Twenty
1929 Packard
1939 Plymouth De Luxe
and a couple 1936 Studebaker Dictators
All in 20 seconds.
http://www.dailymotion.com/video/x1t...940_shortfilms