A while back there was a gs500 3 wheeler on here......but check this out for sale near me
http://iowacity.craigslist.org/mcy/1310175345.html
it has long been my personal opinion that vehicle which do not suck come with 2n {n is an iinteger greater than zero} tires.
any vehicle which comes with 2n + 1 {n is an integer greater than or equal to zero} tires is thus a member of the suck subset of vehicles.