No. Amy Smart and Jason Statham share a hot race track sex scene in Crank 2 that looks real but everything is "choreographed".
“I’m definitely getting used to having sex in front of a crowd," says Amy Smart. "Ironically, in the first Crank, they made me audition doing the scene where Jason and I have sex outdoors at a mall in Chinatown with me draped over a newspaper stand. I was going, ‘Oh my God, they want me to do this in the audition, let alone during actual filming?" she added.
In the scene where Chelios runs into a mob of adult entertainment stars, the "extras" in the movie are real p0rn stars. One of the stars most recognizable is Jenna Haze, but Peter North, Lexington Steele, and Ron Jeremy make an appearance as well.
Learn more trivia about Crank: High Voltage (2009) from this IMDb page.