What's the difference between the '85 Chevy Cavalier and the '85 Cadillac Cimarron? Some emblems, some leather… oh, and an extra $7,045- more than twice the cost of the $6,477 Cavalier (though the $560 cost of the optional V6 pushed the Chevy's price up to just about exactly half that of the Cad). The General's management, already reeling from relentless Japanese competition, the Fiero fiasco, and a bad case of Cerebral Screw-Worms, figured they'd better hunker down and go back to building cars for the over-80 set until the Catera was ready to zig Cadillac back to solvency.
This example is quite rough, partly due to a lot of hard miles and partly due to GM's legendary 80s build quality. Say what you will, but this car still gets from A to B when called upon.