Pontiac Fiero.
This was a coveted car in my teen years. Lol.
Does anyone remember the Chevy Vega or the Chevy Monza? Oh my god, if you are looking at the definition of a piece of crap, this is right here for you. This was at the beginning of the 4 banger revolution where companies were building for lowered gas consumption with little regard for engine performance or stability. These were terrible, cheap cars and were basically designed to be thrown away after a very short time frame.
I do know a guy that squeezed a 350 into a Monza. That little piece of crap would scream down the road. When you got it up to 130, it would shake like the earth was quaking.