I originally bought my Downtube because it's a struggle for me to find a regular bike that's small enough for me and it looked like it would be fun to ride, which it is. It works out well on windy days when I can ask my husband to come pick me up and we throw it into the back of his hatchback. It doesn't work so well in the back of my Z. I decided to get the Brompton (should be arriving in the next few weeks) because of the fold and because the two I test rode were comfortable to ride. I expect it to fit much better in the Z. I don't know if it will be as comfortable to ride 10 to 20+ mile rides as the Downtube is. Guess I'll find out soon.