But this wasn’t enough. By 1984 rallying was all but deregulated, and Audi Sport introduced the Sport Quattro: a shortened, more powerful version of the original coupe, and regulations insisted that 214 were built for the road. With its wheelbase shortened a meaningful 12.6 inches between the B- and C-pillars, the Sport Quattro was more nimble and the bodywork featured numerous GRP and carbon-Kevlar panels. A massive KKK-K27 turbocharger helped increase power to 302hp on the road, while Stig Blomqvist had access to over 450hp in the rally Group B version.
We take rally cars based off front-wheel-drive subcompacts for granted now, but the Mini Cooper was the first of the breed. The humble Mini was originally designed to be an affordable city car, but others saw different possibilities. Race car engineer John Cooper took a 997cc engine out of one of his Formula Junior racers and fitted disc brakes to the Mini to create the Mini Cooper. In hotter Cooper S form, the Mini won the Monte Carlo Rally in 1964, 1965 and 1967, setting the template for so many rally cars to come.
The 959 was one of the most technically advanced road cars of its time, variable torque-split all-wheel drive, tire-pressure monitoring, and a twin-turbo flat-six making over 400 horsepower. Porsche decided to show off the car's capabilities not by taking it racing, but by taking it rallying at the Paris-Dakar. This Rothmans-liveried legend is what resulted.
In August 2007, McRae claimed to still be working on finding a seat for the 2008 WRC season, stating that "if it doesn't happen next year, then I won't (return) because you can only be out of something at that level for so long." In 2017, talking to Autosport podcast, David Richards confirmed that he and McRae had talked about McRae's comeback to Subaru for season 2008. Robert Reid was contacted by McRae who asked him to be his co-driver and the pair was due to test together, but unfortunately the test never happened because of McRae's fatal helicopter accident.
Longer term rallies are typically the outcome of events with a longer-term impact such as changes in government tax or fiscal policy, business regulation or interest rates. Economic data announcements that signal positive changes in business and economic cycles also have a longer lasting impact that may cause shifts in investment capital from one sector to another. For example, a significant lowering of interest rates may cause investors to shift from fixed income instruments to equities. This would create a rally in the equities markets.
In Britain, the legal maximum speed of 12 mph (19 km/h) precluded road racing, but in April and May 1900, the Automobile Club of Great Britain (the forerunner of the Royal Automobile Club) organised the Thousand Mile Trial, a 15-day event linking Britain's major cities, in order to promote this novel form of transport. Seventy vehicles took part, the majority of them trade entries. They had to complete thirteen stages of route varying in length from 43 to 123 miles (69 to 198 km) at average speeds of up to the legal limit of 12 mph (19 km/h), and tackle six hillclimb or speed tests. On rest days and at lunch halts, the cars were shown to the public in exhibition halls.[unreliable source?] This was followed in 1901 by a five-day trial based in Glasgow The Scottish Automobile Club organised an annual Glasgow–London non-stop trial from 1902 to 1904, then the Scottish Reliability Trial from 1905. The Motor Cycling Club allowed cars to enter its trials and runs from 1904 (London–Edinburgh, London–Land's End, London–Exeter—all still in being as mud-plugging classic trials). In 1908 the Royal Automobile Club held its 2,000 mi (3,200 km) International Touring Car Trial, and 1914 the important Light Car Trial for manufacturers of cars up to 1400 cc, to test comparative performances and improve the breed. In 1924, the exercise was repeated as the Small Car Trials.
These events were road races in all but name, but in Italy such races were still allowed, and the Mille Miglia continued until a serious accident in 1957 caused it to be banned. Meanwhile, in 1981, the Tour de France was revived by the Automobile-Club de Nice as a different kind of rally, based primarily on a series of races at circuits and hillclimbs around the country. It was successful for a while and continued until 1986. It spawned similar events in a few other countries, but none survive.
The 1974 London-Sahara-Munich World Cup Rally followed four years later. The rally travelled southwards into Africa but a navigational error saw most of the rally become lost in Algerian desert. Eventually only seven teams reached the southernmost point of the rally in Nigeria with five teams making it back to West Germany having driven all legs and only the winning team completing the full distance. This, coupled with the economic climate of the 1970s the heat went out of intercontinental rallying after a second London–Sydney Marathon in 1977. The concept though was revived in 1979 for the original Paris-Dakar Rally. The success of the Dakar would eventually see intercontinental rallying recognised as its own discipline; the Rally Raid.
When the Porsche 959 arrived at 195mph in 1986, it was by far the most technically advanced, the fastest and most capable hypercar ever conceived. So try and get your head around this: it was originally designed as a Group B rally car, with the road cars only being necessary for homologation purposes. That’s like a McLaren P1 or 918 Spyder taking on the 1000 Lakes… Absolute madness.
To limit power, all forced induction cars were fitted with a 34 mm diameter air restrictor before the turbocharger inlet, limiting the air flow to about 10 cubic meters per minute. The restriction was intended to limit power output to 300 hp although some WRC engines were believed to produce around 330–340 hp. Engine development did not focus on peak power output but towards producing a very wide powerband (or power curve). Typically, power output in excess of 300 hp was available from 3000 rpm to the 7500 rpm maximum, with a peak of 330–340 hp at around 5500 rpm. At 2000 rpm (the engine idle speed in "stage" mode) power output was slightly above 200 hp.