The guard rail that the heroes stand near overlooking Los Angeles (seen in the ‘Ride Out’ video) is the same road/parking lot that Brian (Paul Walker) initially tests his Eclipse from the first Fast and Furious movie.
Ali Fazal, a Bollywood actor, has a cameo role in Furious 7.
Production on Furious 7 was halted on December 1, 2013 following the tragic death of Paul Walker, who was killed in a car crash on November 30, 2013. Shooting had been underway in Atlanta and the film was scheduled to be released on July 11, 2014. Director James Wan and Universal executives held a conference call to determine how to proceed with the production in a manner respectful to Walker’s memory. Walker was nearly halfway through filming at the time of his death. Although there was some consideration about scrapping the film altogether, the film eventually resumed productions following rewrites to address Walker’s absence and give his character a proper send-off.
Body doubles, stunt doubles, and CGI were used to complete the film following Paul Walker’s death. Walker’s brothers Caleb Walker and Cody Walker were among the doubles, and also provided voice over for the character Brian O’Conner. – IMDB