Before you get into your car:
There are a couple of things that drivers should be aware of.
Firstly, as is common practise almost everywhere in the world, you must have a drivers license. Foreign licenses can last up to a month depending on where it was issued from. American licenses for example, only last for up to two weeks before the owner has to get a full English drivers license to be able to drive cars.
To get a license is not a quick process. This is mainly due to the fact that from the late 1990's, the test has become harder and is generally considered one of the toughest in the world. The test itself is a three stage process - the written test, the aural exam, and then, if the others were passed, the practical itself. The exams can be taken at any official driving school and must be booked in advance, you cannot just wander into the school and take the test. Waiting times vary, from as little as a couple of days to months, but the results will be given a few minutes after taking the test. This costs around £100 for all three, and then the full driving license will arrive via post a couple of weeks later, although after passing the tests you will get a certificate which is valid as a temporary licence until the real thing comes through. You must be 18 or over to take the test, and the licence must be renewed every ten years after taken.
Driving without a license is not recommended these days. Fines, jail sentences and permanent confiscation of your car are all likely to happen.

With regard to cars, every car on the road must have the following items to be legal. Front and back number plates (foreign plates are permissible) and full working lights. A tax disc must be displayed on the front windscreen (travellers bringing their own vehicles into the country must get this in advance from the local British Embassy or through their travel agents), and if the vehicle is in the country for over a month, it must get an MOT, which can be done at any competent garage. This is an examination of the car to make sure that it conforms to UK road safety standards. This costs £60, plus the cost of any work that has to be done. MOT's are usually yearly things, but with the advent of duelling, that can be more regular as all cars has to conform to the safety standards. If stopped by the police, you will generally get seven days to get the work done before having to visit the local station with the documentation to prove that it has indeed been done.

Some basic road markings:
Obviously it would be impossible (and pointless) to list every road marking here in this basic guide, but it is worth mentioning a few of the more common ones:
A single dotted white line in the middle of the road mean that you can overtake.
Twin solid white lines in the middle of the road mean that you can't.
Sometimes one line will be solid, the other dotted, and this means that one half of the road may overtake, the other side can't.
Yellow lines on the side of the road mean no parking, and twin lines mean don't even think of it as traffic wardens may well be near by. Although check nearby signs as you may be allowed to park for 30 minutes or just to drop people off.

Gaming English Roads
The best way to represent the average lane of traffic is for the road to be 1/2" wide per lane. Literally! Because counters will be next to each other, sideswipes and other collisions should not occur unless deliberate. Even the widest lanes should only be 3/4" wide.

Traffic Wardens:
Traffic Wardens are the bane of every drivers life. They have a section of the police's powers, and that is just to deal with cars and traffic. They hand out tickets for bad parking, damaged vehicles that are not currently under repair, on the spot fines for vehicles with no tax disc, and so on. As well as on the spot fines, they have the power to clamp cars and even get them towed away.
As such they are not liked by many drivers and have a tough job, especially when just placing a parking ticket under a cars windscreen wipers can set off the cars anti-theft system if it has one. As such, they always wear body armour - unlike the police, theirs isn't blended - and they will have weapons ready. A veteran traffic warden is one that is armed to the teeth.

To most foreign drivers, English roads are very small, and most only ever have room for one lane of traffic in both direction. Even the main motorways rarely get more than three lanes of traffic. This provides little room to manoeuvre in duels, and can make the use of dropped weapons very effective. Also congestion on British roads is quite heavy, especially around the major cities, due to the small roads, but also due to the fact that as autoduelling spread, the best way to get around without making yourself into target practise was, logically, to buy a car.

English roads consist of three main types - the Motorway, the A roads and the B roads.

The Motorways are the English version of the American Freeways and the German Autobahns. They are generally three to four lane affairs, and there are a few of them dotted around the country providing easy access to cities.
Generally the motorways are in quite good repair, and travel along them is fairly safe and easy, except for the M25 surrounding London. This is always busy in rush hour, and generally in these times traffic almost stands still for an eternity.
They all - without exception - require a toll to enter, usually around one pound for a motorbike of car, to five pounds for a tractor-trailer rig.
The thing to note about English motorways is that they always have an additional lane at on the left most side. This is not a lane for traffic, but instead a breakdown lane where you generally attempt to park your vehicle if in trouble and in need of assistance. There you can wait for a police patrol (which could take a while), or use one of the breakdown phone boxes found every couple of miles at the side of the road. However this option requires you to be a member of a breakdown company and thus have the right security code to unlock these boxes.
Motorways also have service stations running their length, but there is no average distance between them - it can be a few miles, it can be tens of miles. Service stations can be likened to American Truck Stops, although they are usually not built as small fortresses. They mainly cater for smaller vehicles than trucks, but will have some space reserved for the larger vehicles. They provide food, shelter, recharges and overnight accommodation. Security is handled by small walls with possible gun turrets, and local security firms.
Officially the speed limit on the Motorway is 70 mph, but providing you are in the rightmost fast lane when overtaking, and providing the traffic or weather conditions aren't terrible, the police will overlook most speeding offences unless you draw attention to yourself in some way.
Dropped weapons of any sort are banned on the motorways, and duels are usually discouraged, but providing you don't do anything drastic (like reverse direction) you'll mainly find yourself left to your own devices by the authorities.

The A roads are the main roads in England, and consist of most inner city roads and are generally found where the traffic is heaviest, but there isn't a motorway. While usually consisting of only the one lane, they can expand to two or three at times. Road conditions are usually fairly well kept, but this will depend on the region. Speed limits are usually set at 60 mph unless the area is signposted, which will be around any town or village, and then the limit will be from 20-40 mph. Police generally have a ten percent leeway policy, but again it depends on how you draw attention to yourself. Roads around towns may be patrolled, but consider roads not to be. Then again, England doesn't really have a gang problem, so the only real threat will be other drivers.

B roads are the last sort of road in England, and the most variable in nature. They can range from a road that is as well kept as an A road, or they can be filled with pot holes and not fit to drive an off-road vehicle down.
B roads also include country lanes, and every driver should be wary down these stretches of road for a few reasons.
The first is quite simple - if you thought normal English roads were small, then these are worse. Most are one lane wide - but that's for both directions of traffic. The sides of the roads are usually hedged, so passing is usually done in small passing areas which are situated every few hundred yards, and these are just dirt patches at the side of the road. This can obviously pose major problems for duellists, and the fact that the lanes are full of corners you can't see round, should make every driver keep his guard up. The best advice is to never get into a duel in these areas if you can help it, unless you know the area perfectly, which probably won't be the case unless you live there.
Country lanes can be found everywhere, from the built up south of the country, to the algae producing regions of the middle east, to the industrialised north.

Along the country lanes, the aspiring driver will encounter a new phenomena in Britain - that of the Fortress Hamlet. Since autoduelling began and money was coming back to Britain, people have been moving back to the countryside and small villages that exist there. However since autoduelling is legal outside of the main cities, the countryside has erupted into small duels, and drivers don't usually tend to have a break just because they are entering some small village. Since England has never had a cycle gang problem, most small villages did not have to defend themselves against marauders, until now. Thus to prevent this happening too often , these villages are starting to defend themselves by building walls and gun emplacements around the village. Some even supplement this with local security firms. The aim is not just to prevent duelling in these areas but also to slow down the drivers. Only time will tell if drivers actual slow down or not, but certainly most will think twice abut continuing a duel on the border of a fortress hamlet.

Duelling:

Duelling is considered legal outside of city limits, and the area will be signposted. Duelling within limits will be dealt with depending on how much damage is going on. If your duel is accurate and confined to just damaging each others cars, then you'll probably get off with a couple of points on your licence, and a fine. However if you're going about without regard for anyone or anything else, then jail sentences, fines and removal of your drivers license is all likely.

On the road, dropped weapons that can damage the road itself (mines, flaming oil, explosive spikes and the like) require a special permit, although duellists are lobbying against this, as, they state that a missed shot with a recoilless rifle or heavier will damage a road surface much more than a dropped weapon would.

Organisations:

The two major breakdown and recovery organisations on the roads these days are the Automobile Association (the AA) and the Royal Automobile Club (the RAC, although members are voting on whether to change the name to the Royal Autoduelling Club). Both used to be quite large and had the whole country as their playground. Then with the advent of autoduelling, the AA decided that enough was enough and set out on a policy of seek and destroy, attacking the RAC whenever it could. This caught the RAC completely off guard, and made them rethink their strategy.

Today, the AA is the only organisation that has rates available to everyone. The customer pays a yearly charge, and then a surcharge whenever they have to call the AA out. Additional charge for death cover, ammunition expenditure and so on are also added to a customers bill, making the call out extremely expensive unless you call the AA out after all combat has subsided.

The RAC though has gone the other route and made themselves into the Elite service for the wealthy. For an outrageous yearly charge, the RAC will come and get you and your vehicle out of any situation that you might have been placed in. They seem to have taken notes from the US Calvary in Vietnam, as their typical response team are two heavily armed, state of the art attack helicopters with a transport one following to pick up the caller. If the vehicle can be airlifted as well, then it will be, else the ground assault team will collect it. One of the reason that the RAC are so expensive is that once you pay your fee, that's it, there are no other charges.

And one of the reason that the RAC comes in so heavy handed is that the AA still lays down the odd ambush...

Typical response times are from 15 minutes to 2 hours for the AA (depending on where you are and the situation), and a flat 10 minutes for the RAC (or your money back and/or your clone fees paid).