A guide for Americans to
drive in England.... 
....or anywhere.
If you are on holiday or working in Britain, you might want to try and understand how their driving differs from the U.S. kind:
1. You have to stop for pedestrians on crossings (which they call zebra crossings). This is the law and you will be held accountable to it.
2. You cannot exceed the speed limit at all. If the police don't get you, the multifarious cameras will.
3. People in Britain generally pass their driving tests on the second or third attempt, and driving in London will continually test your skills. The streets were built before cars, and their widths do not necessarily suit the ones you are used to (which are effectively the size of an armored vehicle). The roads are not necessarily straight either.
4. You cannot turn right on if a traffic light is red. Never pass a red light, because the cameras will get you again.
5. Don't worry, because public transport exists there.
6. It's commonly known that they drive on the opposite side of the road. This does not coincide with way you are supposed to pass an oncoming horse (left shoulder to left shoulder).
7. As a bonus, you will find that the other European countries (except Ireland) drive on the correct side of the road.
8. The British require adults and teenagers to cycle on the road. One should be aware that they are they are not allowed to ride their bycycles on the sidewalk.
9. You will need to keep your car's stereo's at a placatory volume (particularly in built up areas). Equally, you will be discouraged from revving your engines to impress people.
10. You can generally park on any side of the street, in either direction.
11. You will have to wear a helmet to ride a motorbike, and the police will pull you over and probably confiscate the bike if you don't.