Leo's Roller Coaster Relationship

8/20/2007 11:51 AM PDT
Even at 82 mph, Leo DiCaprio and model/girlfriend Bar Refaeli are still hotter than the average Southern California tourists.

Amusement park revelers were stunned to see the couple at Knott's Berry Farm in Orange County this weekend, getting a little white knuckle action on the XCelerator roller coaster.

After experiencing 62 seconds of heart-pounding excitement, they both got off at the same time -- when the ride was over.