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.
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.
Pacenotes are a unique and major tool in modern rallying. Television spectators will occasionally notice the voice of a co-driver in mid-race reading the pacenotes over the car's internal intercom. These pacenotes provide a detailed description of the course and allow the driver to predict conditions ahead and prepare for various course conditions such as turns and jumps.
After several years of varying success, McRae switched to the M-Sport-run Ford factory team for 1999, driving the new Ford Focus rally car. The deal saw McRae earning six million pounds over two years, which at the time made him the highest earning rally driver in history. This move was immediately rewarded with two consecutive wins at the Safari Rally and Rally Portugal. A number of shunts and reliability issues for the new car for much of the rest of that season, however, resulted in only sixth place in the championship standings overall. Moreover, a rare personal pointless run had begun for McRae that year which was only to be halted with a podium on the following February's Swedish Rally, the beginning of a recovery which saw McRae victorious on the asphalt turns of Catalunya and the gravel of Greece, and post 4th in the 2000 overall standings. Midway through the 2000 season, the lacking reliability of the Focus had led to McRae threatening to leave the team if the problems continued. The upturn towards the end of the season resulted in him deciding to renew his contract with Ford for a further two years. McRae's intermittent success with Ford continued into 2001, where after failing to score in any of the first four rounds, including having momentarily led defending winner Tommi Mäkinen on the stages of the season opening Monte Carlo Rally prior to being forced into retirement, he then went on to score three consecutive victories in Argentina, Cyprus and Greece to tie with Mäkinen at the top of the points table. However, having again led the championship outright entering the final round in Great Britain, McRae once more missed out on a possible second title, crashing out and finishing second in the drivers championship, two points behind Subaru's Richard Burns.
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.