8: Cadillac CT4 450T
Cadillac has never had much luck in the space of compact luxury cars, just look at the Cimmaron and the Catera of yesteryear. The CT4 is a new compact luxury sedan designed to take on foreign models once again, except it is based on the outgoing ATS. When you look at the exterior of the CT4, it’s not hard to miss the ATS origins.

While GM claims this is all-new sheet metal the car still looks eerily similar to the sedan drivers have seen for almost a decade. There’s no denying that Cadillac just doesn’t know how to create a compact luxury sedan. Since the original CTS, the brand hasn’t struck a hit with consumers. The CT4 is a compact sedan that’s worth avoiding if you’re in the market for this segment of vehicle.