Forgot to check my score, but it didn't include my worst experience. 1974 Mercury Capri V-6. Stranded once when the plastic timing gear stripped and the suspension and steering were shot when I traded it in at 50,000 miles. Made by Ford of Germany (wonderful German quality). so I don't know if it really counts as American.
On the other hand, my next car, a 1979 Honda Civic, wasn't that much better. Good at first, but pretty much worn out at 50,000 miles, finally gave it away at 80,000. Raped by dealer both on initial purchase and service. Never considered a Honda since.
I remember when they called the the Cadillac variable displacement engine the V8-6-4-0.