For car-topping, you'll want to be sure to get the Stanard or SE Wave (as opposed to a Club Wave). That's the version which is easily dis-assembled, otherwise the tramp has to be re-laced each time the hulls are separated.
There was a regular on this forum, Corey, who transported his SE Wave on a little pick-up and sailed almost daily. He said after a few weeks of lifting the 75 pound hulls on and off, and carrying them to the water, then rigging the boat; he could do it in about 15 minutes and looked like a real body-builder.
One of the Wave Class national champions (Patrick Green) sails an old SE, so there's no loss in speed with that version. He built a little trailer which is just wide enough to hold the two hulls and store all the parts. He can be re-assembled race-ready in a matter of minutes also.
If you're really wanting to car-top, remember a Bravo (one piece) is much heavier than the individual Wave hulls when it comes to lifting them above your car.
What - Me Worry?
2006 Hobie Wave