The supremely refined Mercedes S-Class Coupé is fast, comfortable and stuffed full of technology. It's one of the best luxury coupés you can buyread the full model review
S63 and S65 are AMG cars, so they get their own specifications that are mainly focused on mechanicals, such as reworked suspension and quicker steering to provide a more focused drive. There are also more aggressive visual tweaks. Given that the S-Class Coupé makes for a better comfortable cruiser than it does a sports car, we’d save the cash and keep it simple.
We have yet to try out the S65, but we will report back when we have.