theres no 4wd dyno in cumbria but this guy is building one him self as he currently just has a 2wd one he built years ago. i dont want to go to another tuner as ive been to him quite alot and hes spot on, and ive seen cars his mapped and built him self and he knows what hes doing. plus hes about 40 mins away. and he doesnt just do mapping he will do anything, engine building, any fabrication steel or alloy, custom exhausts, manifolds intercoolers anything at all. this dyno hes building can go from pretty much the length of a classic mini (if it was 4wd) to long enough for anything you like.