4 people 2 dogs9 about 750 pounds, and about 7 suit casses (150 pounds )in a 91 subaru legacy wagon, from seattle washington, to grand rapids michingan, 2400 miles each way. The dogs would lay ontop of the suit casses onin in the wagon/ back. The rear end of the car saged a decent amount, but it cruised at 80-85 mph the whole way. With no problems.