If you have a copy of M25 Racer (the original UK name for London Racer) and it doesn't work on newer (XP and above) PCs, then go here to read how to fix it: http://www.vogons.org/viewtopic.php?f=8&t=41812
Just a quick post to say thanks for making all of these threads for these old games. Will definitely come in handy one day.
Some notes about how to get this running smoothly, especially if you have a >60hz monitor: Run settings.exe in the game folder, and turn OFF "WaitVbl" Make the M25 Racer.exe shortcut to have Windows XP compatibility (otherwise no music when racing) and "Run in 640 x 480", if you don't want the menu to be tiny! I tried the various approaches to improve framerate using an alternative DDRAW.dll, but the game often crashes at the start of a race, so better to not use that.