Hi--AMT-SMP is the reason I got into automotive model building. That was in 1959. At that point in time they were the only company that offered models that looked like the real thing. Yes, they were unassembled promotional models, but they went together well and got me started building. At that time Revell had multipiece bodies, without glass. Revell had the best airplane models then. In 1963, I bought a Monogram 1955 Chevy 2 door hardtop. I was disappointed to say the least. The car went together fine, but it did not have the stock wheel covers. Needless to say that was the last one of that brand I bought until the 1980's. I tried another Revell car in 1966. It was a 1956 Chevy 2 door sedan. The detail was great, but the fit for a green hand like me was terrible. Right now Revell does have the best selection, but only because AMT fired their great developmental team.
My 2 cents. Gary B.