I'm guessing since you have Audi Q2 as an option you are not in the USA, unless you mean Q3? Honestly, avoid the GLA. They are not luxury. They are more of an entry level point into the Mercedes brand. The Q3 is OK, but I found the engine unrefined and for the price you would be better off with a 1 or 2 year old Q5 which is FAR better and FAR faster. The X1 - well I don't have any experience with the current one. The last generation one seemed really cheap inside.

All this is to say, if you can move "up" in one size class you will be getting an actual luxury car and not an entry-level sub-par vehicle. I think top-spec mainstream cars are better than the entry level lux cars. Finding an off-lease or ex-demo GLC, Q5, or X3 should be reasonably easy and should be roughly the same cost as a brand new GLA, Q3 or X1.