vauxhall frontera versus bmw x5

having owned both at the same time, would choose the frontera anytime over the x5, the reason being they both tow my sterling eccles coral (twin axle) but the x5 blew a turbo in france last year at a cost of £2200. the frontera has never failed yet and towed it to the alps aswell, the frontera is a workhorse where has the x5 is all show , plenty of guts but can not last the pace , the frontera is a very underestimated tow car indeed , has a matter of fact i have got shot of the x5 has one had to go to buy a mercedes slk and the choice was easy.