Why do I get better FM reception in my car...

Hi everyone... I recently moved to an urban area and am currently using a Yamaha T-2 tuner with the plain vanilla wire antenna. I'm wondering why I can get better reception in my car parked curbside than in my apartment? I have tried both Godar and Dynalab antennas and the regular wire antenna worked better than both of these. The problem is that I can't get the station I want in my apartment.

Any insight or recommendation would be greatly appreciated. Unfortunately a roof-top antenna is not an option...

Thankg again!