"Some of the video sequences can be skipped by pressing R3." - TEM

"Look for some odd vehicles parked behind buildings and bushes in the parks.  For example, you can find a golf cart behind some bushes near Speakers' Corner in Hyde Park." - TEM

"You can find a tank in Free Roam.  Go east along Birdcage Walk and look for some open gates on your right.  You'll find the tank just inside the gate.  Use L3 to fire the canon." - TEM

"To find the Saab 9x concept car in Free Roam, go to Chinatown in Soho.  You'll find the car in the underground parking garage." - TEM

"when you are in the art museum...snap all the bad guy's necks that are standing on the first floor to avoid a major shootout right way. don't go in there with your guns drawn." - tc

"On mission 12 before you go to the ship go back into the basement of charlie's mansion and keep going through it until you get to the top of the staircase that takes you outside. Turn right and go into Charlie's garage and there is a TVR you can drive" - cabe