my first car was a 74 corolla,
so many great times, whern times were tough and petrol was hard to come by i'd pop it in neutral and coast down all of the hills in an effort to save enough money to go windsurfing.
you can get a lot of gear on the roof. i had a 12" pvc sewer pipe with caps for all of the sails strapped to the roof racks. boards, booms, mnasts all went beside that.
once i managed a one design, raceboard and shortboard on the roof no probs.

of course, car starts to look a liilte small under all of that gear.