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Autocross is a form of motorsport in which competitors are timed to complete a short course using Car on a dirt or grass surface, excepting where sealed surfaces are used in United States. Rules vary according to the governing or sanctioning body, such as the length of the course, the number of permitted attempts, or whether competitors start the course individually at intervals or at the same time as others. In this latter form, Autocross differs from other forms of Auto racing by using a system of heats or alternative timing methods for the classification rather than racing for position and declaring the first across the finish line as the winner.
Autocross began in the United Kingdom in the early 1950s at an amateur level within local motor clubs using temporary courses marked on grassy fields to not cause damage to any cars. The creator of rallycross, Robert Reed, wanted a version of autocross with more spectator-appeal to be made for television, using professional racing and rally drivers and teams; and courses featuring jumps, sharper corners and a mixture of sealed and unsealed surfaces.
In the United States, the motorsport called autocross is more like the UK and European sport of autotesting or autoslalom, and what is called rallycross in the US is more like what the UK and Europe call autocross. The Sports Car Club of America (SCCA) publishes rules for autocross, which are also used by many independent clubs, as well as hosting national events and championships within its Solo branded series. The National Auto Sport Association brands its version of US-style autocross as NASA-X, Both take place on sealed asphalt or concrete surfaces, one car at a time running against the clock, with traffic cones defining the path to be driven, and an emphasis on car handling and precision manoeuvring.
Autocross courses can be as short as 800 metres or several kilometres long. Courses may be temporary and marked by which can be reconfigured during events, or be permanent tracks with approval by a motorsport body.
Events typically have many classes that allow almost any vehicle, from Manufacturing Touring car to purpose-built racing cars. The international body for autocross, the FIA, and the French body, FFSA, both provide technical specifications for cross cars, lightweight buggy cars.
Autocross is one of the most accessible and affordable forms of motorsport, and autocross events are open to novices. Because autocross events use rubber traffic cones to define the course, and are typically run on paved surfaces with few obstructions, the hazards and barriers to entry are low. While speeds are generally no greater than those encountered in legal highway driving, the combination of concentration and precision manoeuvring gives drivers an experience similar to that of a full Road racing.
Competitors range from casual participants driving their commuter vehicles, to dedicated competitors driving purpose-built cars with special tires. There are classes accommodating varying degrees of car modification, as well as classes specifically for women and children.
Many events are open to spectators. Many local car clubs offer autocross novice driving schools to help drivers feel comfortable before a regular event.
The SCCA National Championship is held in September in the Midwest. Currently (2024 and prior) held in Lincoln, Nebraska. The event takes place over 4 days with half the drivers competing on the first two days and half the last two days. Two different courses are driven with winners determined by combining best times from both courses. It is considered the largest amateur motorsport racing event in the world; for 2024, registration was capped at 1,300 drivers with a number of additional people on a wait list.
Some people choose to start singularly, particularly if they compete in a rally car. The sport is relatively low risk as there is or should be nothing to hit. However, if you wish, you may do double car starts. Most people opt for this, although some competitors choose to do 3 and 4 car starts whilst still competing against the clock.
Presently, there are many local clubs which host across the UK, although the main regions hosting Autocross events are: AEMC for East Anglia, ANECCC - North East, and, the ASWMC for the South-West region. The ASWMC, for its part, now has 13 different Championships, which attract around 250 contenders each year. The regional autocross events also have different formats. For instance, the South West follows the traditional two-car start, except for the 4 abreast Sandocross that used to run at Weston-super-Mare, while the North East region involves 4-car autocross.
FIA European Autocross Championship was established as an FIA European Cup in 1977 and was upgraded to an FIA European Championship in 1982. Since 2021, a selection of the ten FIA European Autocross Championship events also host rounds of the FIA European Cross Car Championship (7 competitions in 2022) and the FIA Cross Car Academy Trophy (5 competitions in 2022, reserved for drivers aged 13 to 16).
The championship is run on circuits on natural terrain, with any type of unsealed surface, from 800 to 1,400 metres in length. Autocross races involve a maximum of 10 cars on track simultaneously and consist of a succession of qualifying heats leading to two semi-finals and a final.
The championship has a series of events throughout the year in various locations. For example, in 2022, the events were held in places like Seelow, Vilkyčiai, Nová Paka, Saint-Georges-de-Montaigu, Přerov, Saint-Igny de Vers, Maggiora, and Mollerussa.
Motorkhana (Australia and New Zealand) and autotesting (the UK and Ireland) are also similar disciplines. With speeds rarely exceeding 40 mph (60 km/h), motorkhana and autotesting are slower than American autocross, require hand-braking, and have sections that must be navigated in reverse. Autocross speeds can exceed 60 mph (100 km/h), and courses requiring drivers to reverse are generally prohibited. Hand-braking is also uncommon, and not usually necessary on a typical autocross course.
They are similar to the Japanese gymkhana, another type of handling competition. Gymkhanas are tighter than motorkhanas and autotests, with numerous 360-degree turns around cones and courses which loop back on themselves. Fast times require sliding, and resembles a combination of autocross and drifting. Gymkhana does not usually require backing up. In ProSolo, an SCCA-sanctioned programme of autocross, two cars run side by side on mirror-image courses after starting at a "Christmas tree" starting system similar to that used in drag racing.Sports Car Club of America (2016). " SCCA® ProSolo® National Series Rules".
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