What's the most efficient speed?
Hi, has anyone worked out what the most fuel efficient speed to be in Cruise control is? When I'm in the car with the family I try to at least try to be green...
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HRE P40 Wheels (20" Charcoal), BMW Performance ZCP Spoiler & Splitters, Eisenmann Race, BMW Performance Steering Wheel, Carbon Fibre Exterior Trim (Front & Side Grills), Eibach Pro Springs (Not yet fitted).
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