my last tornado had a 418rwkw street tune, I used it to tow a kanga tipper trailer with all the auger bits and a kanga on it, it was some of the most fun I had in that car, because the trailer and kanga weighed so much I was able to floor it going down the road at 60 and do massive burnouts LOL, probably not the best thing for the car but I couldnt care.... I think all up the trailer, bits and kanga weighed about 2.5tonne... the tornado was a zf 6A. I also towed the horse float with 2 horses, about 2.3tonne, however I drove very nicely due to the animals in the back. oh yeah...... private road......