I'm going rounds with a friend at a local dealer. I don't think they are legal in Wisconsin. Not that dealers won't tell people they are, and I'm sure Polaris lawyers are interpreting the law in their favor, but as soon as the State Patrol sees one of these things I think there will be problems.
As per my State Farm Agent... "at this time Underwriting says they will not insure the Slingshot...... Maybe in a few years when they have some statistics on it."
Looks like a fun toy, but I don't think it will clear your average speed bump.