I'm 187cm and I can just sit in the back but my head touches the roof. Anyone shorter is fine. If anything there is slightly more room in the back of the coupe than the hatch. Also, the trunk is bigger on the coupe than the hatch.
I don't have any problem with getting in and out in narrow Belgian car parks
You can press the unlock button twice and then the windows go down automatically when you open the door which makes it much easier to get in. The only problem with narrow carparks is other drivers damaging your car!