Rallies usually present a multitude of moneymaking opportunities for investors because prices are generally rising across the board. But rallies don’t last forever, and they don’t always give advance notice of their arrival, so the investor must know when to buy and when to sell to maximize his or her profits. This means the investor must attempt to "time the market" or gauge when a rally has begun and when it is ending.

In the Paris–Madrid race of May 1903, the Mors of Fernand Gabriel [fr] took just under five and a quarter hours for the 550 km (340 mi) to Bordeaux, an average of 105 km/h (65.3 mph). Speeds had now far outstripped the safe limits of dusty highways thronged with spectators and open to other traffic, people and animals; there were numerous crashes, many injuries and eight deaths. The French government stopped the race and banned this style of event.[7] From then on, racing in Europe (apart from Italy) would be on closed circuits, initially on long loops of public highway and then, in 1907, on the first purpose-built track, England's Brooklands.[8] Racing was going its own separate way.
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.[citation needed] 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.[3]
"bring together," c.1600, from French rallier, from Old French ralier "reassemble, unite again," from re- "again" (see re-) + alier "unite" (see ally (v.)). Intransitive meaning "pull together hastily, recover order, revive, rouse" is from 1660s. Related: Rallied; rallying. Rally round the flag (1862) is a line from popular American Civil War song "Battle Cry of Freedom."