BMW M3 Competition Pack or Mercedes C63S AMG? Ver indecisive

[rabdal897]

Its a boring Tuesday at work so I figured, why not take it to the forums to sort this out. I recently sold my Porsche 991 GTS and am looking to buy a sporty sedan. The coupe life was nice but, I'm ready go jump into something with a bit more space.

I went last week to test drive the BMW M3 with competition pack and I loved it. The car drives absolutely fantastic and it's stupid fast. I thought it was a done deal at that point. However, I went over to Mercedes and test drove a new C63S and was not blown away by the performance but, once I sat in the Merc, I absolutely fell in love with the interior. What a beautiful place to be. However, its heavier and doesn't feel as sharp as the M3.

Ideal car for me would be M3 drive with C63S interior and refinement. Also, is there any other car I should consider? I wonder if any of you guys have owned either car and what would you do in my situation.