The new trailer for Fast & Furious 4 is here, and it's one of the most action-packed that's out right now. Vin Diesel reprises his role as expert criminal and driver Dom Toretto, and Paul Walker as FBI agent Brian O'Conner. The two are forced to become allies as they try to bring down the man who killed a mutual friend. Just in the trailer alone we get: an awesome chase sequence, a huge explosion, and a video game-esque car maneuver. Check it out after the jump!