I am looking at buying 2005 E with 40k miles showing on the odometer. The E was a toad/dinghy vehicle behind a motorhome. Can someone tell me if the odometer reflects total miles driven/towed or just miles driven? Its an AWD AT that was flat towed 4 wheels down. I did a search but found conflicting opinions. Anyone know FOR SURE? Thanks! BTW the dealer says its the combined mileage.