Hello,
I have a regular GLC 300 Coupe and the interior dimensions are the same.
You sacrifice a little with the trunk space than the SUV. It is alot higher in the coupe but there is an under layer storage compartment that is fairly large.
I had no problems with wind noise so far after one week of having the car and the 43 should be even better because it has the air suspension package as a standard option so it would decrease the body roll therefore the wind noise.
I have a regular GLC 300 Coupe and the interior dimensions are the same.
You sacrifice a little with the trunk space than the SUV. It is alot higher in the coupe but there is an under layer storage compartment that is fairly large.
I had no problems with wind noise so far after one week of having the car and the 43 should be even better because it has the air suspension package as a standard option so it would decrease the body roll therefore the wind noise.