All of the cars you have listed fully loaded range from 60k to 70k.
If you want to put it that way when you get up to 70k you start getting near cars like the RS4 RS5, TT RS, M3, CTS-V, Corvette, GT500, F-Type, IS-F, Elise, Evora, Exige, and yes.. Even the C63 AMG
Now lets see those full loaded 335is, ATS, and G37s go against the likes of a C63 AMG or M3.
The CLA 45 AMG is a performance model of the CLA. It was never meant to compete with the G37, ATS, 335i, etc but I am willing to bet it would still hold its ground even considering it is FWD mostly and a 4 cylinder. I am not seeing the point if your comparison.