I normally carry my Pro Anger on a trailer. This past weekend I took a trip to Padre Island National Seashore and traversed places that were 4WD only and I could not have pulled my trailer through the deep ruts and sand. So I decided to carry my Pro Anger on my car top.
My factory racks are rated for 200 lbs and I have them padded. With some effort I hoisted the PA up on the rack and strapped it down both side to side and front and back(front strap doesn't show on the following pic). I drove 65 and 70 for 250 miles both ways with not a problem.....in fact I got some of the best gas mileage ever on my vehicle.......of course a tail wind both ways probably helped.
Life is good!!