they did prototype that sled 4 years ago..tested it for 3 weeks with a team of 3 polaris engineers/mechanics in my area...they stayed with me and my family as we were the only homestead within there testing ground...it was there old 650 rxl engine ported and upgraded efi..with direct injection..worked well...it was left behind and we use it for a bench beside our barbq pit every summer..kids love it..the seat still has spring in it...they told me to keep it top secret and they would be back...??...haven;t seen them since...i have two pregnent daughters from them and a sheep that walks funny now...i have a few things to discuss...i will give them the sled back if they take my daughters and grandkids..