[chefdave]

Hi have moved my engine under tray so that it is at bottom of airdam. Also closed up radiator grill so all the air goes through radiator and not around it. Added a small grill block at same time. Got no actual figures but seat of the pants and fact i need less throttle to hold cruising speed indicates its a benefit. Next job is to fit rear pan under spare wheel well to reduce bumper/parachute effect. Between the front and rear wheels the floor pan is flat. So not going to bother with that. Coasting distance is up and going down slopes requires little or no throttle. When i do my next trip to inverness 250-260 mile round trip over scottish mountains will give me a better idea of how much improvement. Obviously weather dependent if snowing or icy will drive to road conditions and put eco driving on back seat. Safety will always come first every time.