Glad you are enjoying the car. By the sound of things you have a lot of reading to do on this forum and in general. Those things you have noticed are completely normal/required for a high performance car as such and it seems this is the first time you are experiencing such a car. You need to forget about comparing the F to the 250 or even 350 they are different animals altogether. You should try the 1st gen IS-F and you will not even mention hard ride on yours ;) As for the mirrors they do fold but you need to have the L mirror button ON. The brakes are very typical please read up on that there is not much you can do, again high performance components have some side effects, you can go after market for less noise but that's another story.