I know of 3 popos with frame issues, one is a buddy of mine and it broke the rear a-arm bracket off the frame (same as my popo when i had one) and the frame also was broken at 2 other spots. Polaris actually fixed the issue in the 2012 models, same deal man and they're still slower. Can am fixed the problem within a year and slapped a 7 year transferrable warranty. Buy a used 2010 popo and have the frame snap and call popo to fix it when it's out of warranty, get your your bank out! or fix it yourself with some braces like my friend did.
All makes have their issues, bottom line is can am is the fastest out of the box,, seeeeeeeeeeeeeeeeeeeeeee yaaaaaaaaaaaaaaaaaaaaaaaaaaaaa! braaaaaaaaaaaap!