I use a 1976 Ford F100 long wheelbase ute(pickup)with a 351 cleveland engine for towing a HQ Holden race car,the car and spares weigh about 1500kg.It cruises along at 110kph very well and gets about 15mpg,it can go from Sydney to Albury before the 2 fuel tanks need filling up,top speed fully loaded about 150kph but you don't get a chance to do that very often now days!