There are two main forms: stage rallies and road rallies. Since the 1960s, stage rallies have been the professional branch of the sport. They are based on straightforward speed over stretches of road closed to other traffic. These may vary from asphalt mountain passes to rough forest tracks, from ice and snow to desert sand, each chosen to provide an enjoyable challenge for the crew and a test of the car's performance and reliability.
The causes of rallies vary. Short-term rallies can result from news stories or events that create a short-term imbalance in supply and demand. Sizeable buying activity in a particular stock or sector by a large fund, or an introduction of a new product by a popular brand, can have a similar effect that results in a short-term rally. For example, almost every time Apple Inc. has launched a new iPhone, its stock has enjoyed a rally over the following months.
In 1980, a German car maker, Audi, at that time not noted for their interest in rallying, introduced a rather large and heavy coupé version of their family saloon, installed a turbocharged 2.1 litre five-cylinder engine, and fitted it with four-wheel drive. Thus the Audi Quattro was born. International regulations had prohibited four-wheel drive; but FISA accepted that this was a genuine production car, and changed the rules. The Quattro quickly became the car to beat on snow, ice or gravel; and in 1983 took Hannu Mikkola to the World Rally Championship title. Other manufacturers had no production four-wheel drive car on which to base their response, so FISA was persuaded to change the rules, and open the Championship to cars in Group B. This allowed cars to be much further removed from production models, and so was created a generation of rallying supercars, of which the most radical and impressive were the Peugeot 205 T16, Renault 5 Turbo and the Lancia Delta S4, with flimsy fibreglass bodies roughly the shape of the standard car tacked onto lightweight spaceframe chassis, four-wheel drive, and power outputs reportedly as high as 600 hp (450 kW). Further Group B cars were developed by Ford (the RS200), British Leyland (the Metro 6R4) and many others, but these were less successful.
The second game in the series, and it features the works-entered cars and the rallies of the 2000 World Rally Championship. There are 3 difficulty levels, namely Novice, Intermediate and Expert. New features include Arcade mode, with direct head-to-head competition against AI drivers or another player, and a cleaner and more minimalistic menu system, which would be retained for the rest of the series until the release of Dirt 2 in 2009. The game was a bestseller in the UK, and again later in the year. A version for the iOS was released in June 2013. IGN gave it a score of very high 9.4/10.
Colin McRae began his competitive career in motorsport riding trial bikes at an early age, despite being more interested in four wheeled machines rather than two wheel bikes. At the age of sixteen, through the Coltness Car Club, McRae discovered autotesting, he soon traded his bike for a Mini Cooper and started competing. A year later, he began to negotiate with another club member to use his Hillman Avenger for the Kames Stages, a single-staged rally venue not far from McRae's home. McRae finished the event fourteenth; first in his class although he had run most of the event in a higher position.
In Africa, 1950 saw the first French-run Méditerranée-le Cap, a 10,000-mile (16,000 km) rally from the Mediterranean to South Africa; it was run on and off until 1961, when the new political situation hastened its demise. In 1953 East Africa saw the demanding Coronation Safari, which went on to become the Safari Rally and a World Championship round, to be followed in due course by the Rallye du Maroc and the Rallye Côte d'Ivoire. Australia's Redex Round Australia Trial also dates from 1953, although this remained isolated from the rest of the rallying world.