Rear windshield fitment of vault for my Pro R4 is good, doors only mediocre, the top radius on the rear doors was incorrect leaving large gaps. My main beef is with the windshield, it cracked right at the radius next to their logo 3 minutes into a ride you would take your car on. The next day it cracked, same spot on the other side, obvious manufacturing defect. On calling when back from the trip they refused to warranty the glass or fix it. Couldn't get a call back from anyone other that the secretary. Very poor business practices and I'm going to make sure everyone on the associated Polaris RZR online boards knows it.