M3 Mirrors. Difference Between Sedan and Coupe

[driftedtofu]

So I recently got a set of M3 mirrors, and I was wondering how do you tell the difference between sedan and coupe versions?

[MParallel]

It's the mirror's base. The coupe and vert have a windshield that has a higher angle, which means the triangle that is the mirror's base plate, is different.