8: Cadillac Coupe DeVille
In the 1970s, the Cadillac brand was still synonymous with high-class luxury, but the company wanted to attract younger buyers. Thus, the Cadillac Coupe DeVille was born. This was a luxurious sports car that provided decent performance for the period, but in recent years the value of this car has risen to obscene levels (via Notorious Luxury).
The Cadillac Coupe DeVille is something that should be reserved for true enthusiasts of the brand. This isn’t a car that will provide a lot of excitement, and the price will probably break the bank. There were other vehicles built on this platform that provided better value for money.