I love and hate this thread. My current garage is crammed with two skis, shelves, work benches, and 1959 Biscayne.
BUT, about 6 years ago in my first house which had a separate 19x23' shop... this was the set up.
And you need a 23' shop when you have a 21' long car.
In case anyone thinks I have some sort of necro thing... this was the goal for said 21' long car.
And this is how far I got before my daughter came into the picture. This was a pic from the CL ad.
This thread is reviving my desire to have a separate garage built.