Autograss splits vehicles down into 10 classes. These are by both men and women and there is junior classes for 12 to 16 year olds who can race class 1 or junior specials. Class 1 to 7 are for saloons, and classes 8 to 10 for purpose built vehicles, known as “specials”.  A few regulations are common to all classes

. All flammable trim removed

.Roll cage fitted

.Fire extinguisher fitted

.Windscreen replaced by wire mesh

.Harness fitted

.Petrol tank removed

.Replaced with small tank

Juniors are divided into 3 separate classes.2 saloon car classes, in which they can use cars that are eligible for class 1(see below) and also a junior special class.These like all other specials are of single seater design being powered on this occasion by 1200cc corsa engines.All children from the age 12 to 16 can race in the juniors

CLASS ONE

Class 1 cars are standard minis,citreon ax’s and fiat cinquecento. As with all autograss cars they have to have the trim, dashboard and seats removed.The windscreen is removed and replaced with wire mesh.

CLASS TWO

Class 2 is open to front or rear wheel drive cars up to 1300cc.The engine can be either front or rear, and both are popular.Only 2value/cylinder cars are allowed and there is a minimum lenght requirement.The one major requirement is that you fit a specified restrictor plate to the inlet manifold.

CLASS THREE

The first of the modified classes must be front engined and rear wheel drive.2 valve per cylinder engines have unlimited capacity,while multivalves are restricted to 2070cc.This leads to very powerful cars with little weight over the driving wheels,and very sideways action.

CLASS FOUR

Class 4 is a modified class, with engine capacities allowed up to 1099cc. The major battles in this class take place between Austin minis and hillman imps. Both old cars, but nothing since has being built that can compete with the lightness and tune ability of these cars .

CLASS FIVE

Class 5 is a very popular starting point for people wanting to drive modified saloons.Engines capacities up to 1450cc are allowed.A lot of cars run rear engines to help improve grip.So all rear wheel drive vechicles are also rear engines.

CLASS SIX

Class 6 the class that allows for unlimited engine capacity and modifications in a front engine/front wheel drive combination. The most popular car in the is the nova,its comparatively easy to transplant the 2.0 litre astra engine into the chassis,but this engine can be placed in any chassis and regularly is.

CLASS SEVEN

Over recent years class 7 has become the most entertaining class in autograss.The inherent sideways handling of these powerful cars lends itself to good spectating.The class is restricted to rear engined cars, the engines are unlimited, but must be above 1350cc, even two may run,as is the case with the bike engined cars.

CLASS EIGHT

The most competitive of the specials classes is also the one with the lowest capacity limit. In the vast majority of the cars, bike engines are used,even though they infrequently reach limit of 1350cc.

CLASS NINE

The class most likely to win an open class race.This class combines the high power output of the modern 2.0 litre engine with the lightness to allow better handling than the heavier class10 vehicles.The capacity limit is 2055cc and any modifications are allowed, with the usual exception of turbo and supercharging

CLASS TEN

This is one of the most powerful classes around. Another of the purpose built classes, this one has no capacity.

Flags

• RED FLAG Stop racing immediately. Bring your car safely to a walking pace and return to the pits area for your re-run.

• YELLOW FLAG There is an obstruction on the track ahead. Reduce speed until passed the obstruction then continue racing.

• GREEN FLAG This is a warning of dangerous driving. If you now receive a green flag you are docked two places on the final result.

• BLACK FLAG Immediate disqualification for dangerous driving. Return to the pits area.

• BLUE FLAG This is a warning of a mechanical defect, such as a puncture. Continue at your own discretion but do not obstruct other race traffic.

• LAST LAP FLAG This is a yellow flag with a big black X on it.

• CHECKERED FLAG This indicates the end of the race

• AMBULANCE FLAG This is a white flag with a large red cross. At the showing of this flag safely bring your car to a complete stop on the track. Ensure you are not blocking the path of the ambulance. Remain on the track until told to move.