whats been your experience on a sled that has to go and not konk out . DW HAS to drive to work in some very nasty winter weather and at odd hours of the day. was thinking that a snowmobile filled the bill but have not had much to do with them since the 70's. (left on the trail to much!!!) speed is less important than durability. we do have two vintage sleds, a John Deere 440 liqufire and a Yamaha srv but dont consider them up to the job!!