For 2003, McRae signed for Citroën, a team of winning pedigree due to its successes of the previous year with young Frenchman Sébastien Loeb but otherwise undertaking its first complete campaign at World Rally Championship level. McRae's second-place finish on his début in Monte Carlo alongside Loeb and Carlos Sainz whom, aboard the Xsara WRC, helped complete a 1–2–3 finish, transpired to be the finest result he would achieve for the team, for the season was to end with seventh in the drivers' championship, with no victories. Rule changes that were to be brought in for the 2004 season changed the previous practice of having three nominated points-scorers within a team to two. With Loeb partway through a multiple year contract, this meant the Citroën factory team, under Guy Frequelin's leadership, were forced to choose between dropping McRae or Sainz. With Sainz being the more successful of the two during the 2003 season, it was McRae who had to look elsewhere for 2004. David Richards, McRae's former boss at Subaru, who had by now taken over WRC's commercial rights holders ISC and worried that the loss of a character like McRae would damage his ability to market the sport, set about trying to help McRae find a drive for 2004. McRae was unable to find a team, and for the first time in over ten years he would not be competing in the World Rally Championship.
In the wake of the ever more advanced rally cars of the 21st century is a trend towards historic rallying (also known as classic rallying), in which older cars compete under older rules. This is a popular sport and even attracts some previous drivers back into the sport. Many who enter, however, have started their competition careers in historic rallying.
McRae rejoined Prodrive for the 2004 24 Hours of Le Mans where he took third place in the GTS class, and ninth position overall in a Ferrari 550-GTS Maranello partnering Darren Turner and Rickard Rydell. Fellow countryman, and Le Mans winner Allan McNish commented that "Colin has adapted far better than people expected" to endurance sportscar racing.
However, if you are heading for a spin around your favourite backcountry twister, then there are few cars better suited. Independent suspension all-round, a turbocharged 230hp 2.0-litre engine and all-wheel drive, mixed with the early signs of Ford’s newfound commitment to handling, meant the Cosworth would devour pretty much any flavour of road in its path.
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.
It scored six successive World Rally Championships in its long career, and on the road it punched way above its weight. To drive, Integrales feel unwaveringly surefooted and endlessly poised. But, whereas more modern turbocharged four-wheel drive cars have sacrificed outright fun for grip and numbed precision, the Integrale is always exciting to hustle down a back road.
Such was Porsche’s commitment to making the ultimate go-anywhere racing car that the 959, with its domesticated version of the 962’s racing engine, was years ahead of the game in terms of technological development. It was said that Nissan chief engineer Naganori Itoh took inspiration from the Porsche 959 when developing the hi-tech four-wheel-drive system of the R32 Skyline GT-R. And that’s some lineage indeed.
In an attempt to cut costs, since 2006 new regulations required mechanical front and rear differentials, while the central differential remained active. Active suspension and water injections were also prohibited. Cars entered by a manufacturer had to be equipped with the same engine for two rallies; further limitations were imposed on the changing of some parts, including suspension, steering, turbochargers and gearboxes.
Most of the works drivers of the 1950s were amateurs, paid little or nothing, reimbursed their expenses and given bonuses for winning (although there were certainly exceptions, such as the Grand Prix drivers who were brought in for some events). Then in 1960 came arguably the first rallying superstar (and one of the first to be paid to rally full-time), Sweden's Erik Carlsson, driving for Saab.