Great idea you had.
DH and I both have cars we take to car shows. His is a dark blue '65 Chevy Impala Supersport and mine is a light blue '85 Mustang Convertible. I call them Big Blue and Baby Blue. We park side by side and I spend a lot of the time there doing applique or other handwork. It's a time we both enjoy. I am now collecting pictures of the cars to make quilts for each of them.