You got the old mold Welly-based ACME TransAm?
I like these a lot, too.
Only real problems seen from today: doglegs, sealed trunk and the too shallow front wheels with spoiler scraping stance.
Also, they wear slicks which doesn't exist in 69 and 70, I think.
Only the 69 versions here, my single 70 had to go because it was the streetcar light yellow instead of the schoolbus color.
Mine are lifted up front with shims.