Can't comment on your garage but Dukes of Hazzard style is the way I get in and out!
Lower window, open door ( about 6 inch before it meets the wall!), ease my oversize frame until I'm stood on the sill, feed one foot at a time onto the ground, shut the door, fold the door mirror, move to the front of the door, switch on ignition, close the window, remove the key and finally lock the car.
Reverse for getting in and make sure you have foam or carpet on the wall.
After practice it's less than a minute from start to finish.
I very carefully made sure I had plenty of length in the garage but it never once crossed my mind about width as it has been used for a variety of cars over the years. These Supes are very wide cars!