KL MotoPark

Also known as a splash-and-go, this is a quick pit stop where a car gets only fuel

This pit crew member controls the fuel

A racing car's transmission. Usually it contains six forward gears and reverse

A driver is losing his race position because he lost the draft. In this situation, the driver needs to get back in line with the other cars where he can go faster. (See drafting.)

The team takes the car to the garage when it is too damaged to be fixed on pit road

Each manufacturer team is entitled to have one per entered car and each tire manufacture two so-called gravel inspection car. Purpose of these cars is to go through the stage at least one hour before the proper rally crews and make any necessary amendments to the notes

The starting line-up, based on the fastest single lap by each car qualifying. Cars begin in two staggered rows, the pole car being eight metres ahead of the car heading the other row

Adhesion or roadholding of the car. This affects how efficiently power is transferred through the wheels and how well it corners. One of the more common driver complaints is the "lack of grip". The tires have to hold the car firmly on the road while transmitting enormous power. The level of grip a chassis can generate can be affected by tires, suspension design and aerodynamics to name a few. The more grip a car generates, the faster it should be able to corner

At the beginning of the 1998 season, grooved tires were introduced in a bid to reduce cornering speeds and increase overtaking opportunities. The previous slick (treadless) tires used for dry weather racing in Formula One were required to have longitudinal grooves (three at the front, four at the rear) moulded into the tread. The grooves reduced the contact patch area of the tire (that part of the tire in contact with the ground at any given instant) by 17 per cent.

As air flows beneath a racing car it creates a low-pressure area that "sucks" the car down on the surface. The car acts like an upside-down aircraft wing (so called "reverse-wing" effect). Unlike in aviatics, where the forces lift the object, this effect pushes the car down increasing the amount of aerodynamic downforce allowing the car to corner at higher speeds

In modern rallying, there are two important groups. First is Group N, which contains all cars that in effect are close to production cars. These cars can be modified only very little (like removing rear seats). Group A contains all purpose-built rally cars. Even cars constructed under World Rally Car -rules are classified as Group A -cars, contrary to the common belief. In the 1980's FIA also had famous Group B, which was in effect for prototype cars. That was cancelled after series of fatalitites at the end of 1986

A light-beam-to-photocell connection, located 16 inches past the staged beam. It is used to prevent a competitor from blocking the stage beam with a low-installed object such as an oil pan or header collector pipe, thereby gaining an unfair advantage. If the guard beam is still blocked, the red foul light is triggered on the Christmas Tree and the offender is automatically disqualified.