I was going to snerk that "the crappier the product, the better the commercial", but I have to say that was some amazing driving in that Isuzu commercial. Especially those two cars going down a flight of marble stairs in formation - on only two wheels each.
The car couldn't have been all that bad to have stood up to that sort of drill. Although of course they may have been "specially prepared".
Can't think of any commercials from the 50's or 60's that were a favorite. But I used to really hate those Anacin commercials - which were purposefully made to be as annoying as possible.
Did you know that American advertising of the latter half of the 20th century had its roots in propaganda methods perfected by the Nazis?