I have been looking at the vast selection of motor movers now available. There appears to be a huge difference in price for a small difference in performance. Being the type of caravaner who looks after the pennies (are there any other sort?) the Purple Line, Enduro, seems excellent value for money.Has anyone had any experience, good or bad, with this type. We have a Swift Challenger, which has a max laden weight of 1435kg.it also claims to work with an 85Ah battery, which again would save buying a new one.