Coups get the shark fin on the roof for XM/cell. Convertibles get a hockey puck on the trunk. Coups have the AM/FM antenna built into the rear glass. Convertibles have the old school wire antenna that can be twisted off and removed if you don’t use the radio.
LOL OP it gets even better...
If you have the satellite radio and navigation the convertibles also get a bubble bump in the middle on top of the trunk in addition to the passenger side antenna.. all while the coupes get just 1 shark fin antenna.
I replaced my long antenna with the stubby too, like what DT-GT did.
Sometimes, bigger isn't always better...