Fun fact: A world of race cars

Racing tests the speed and performance of a car as well as the skill and courage of its driver. Car racing has been around since the invention of the automobile.
The popularity of motor racing might be explained by the large variety of events and the even larger selection of racing vehicles.
Sports car racing has events for production sports cars and specially built cars. Karts are the smallest racing vehicles, and many racing careers began with a kart.
Rally cars are usually sedan cars that have been reinforced for strength and rough road conditions. Dragsters range from mass-produced passenger cars to strange-looking models built only for racing. Formula One race cars (also called Grand Prix cars) are the fastest, most powerful motor cars. They are also some of the most expensive. Indy cars are named for the famous Indianapolis 500.
Stock cars are sedans that look like regular cars, but they have been altered for extreme speed.
The green flag signals the start of a race. It is also waved after a caution flag to indicate that the race has restarted.
A still blue flag tells a driver that another car is close behind. A waving blue flag means the driver is about to be overtaken.
A still yellow flag indicates danger ahead. When waved, it indicates extreme caution; drivers must slow down and be ready to stop. No passing is allowed. A still red-and-yellow flag signals a slippery track. When waved, it means the track is very slippery.
Waved by a starter, the white flag signals the last lap. At some races, a white flag warns that a rescue vehicle is on the track.
A black flag signals an infraction or mechanical problem, and the driver must pull into the pits. The flag is displayed with a board listing the car’s number.
A red flag means the track is unraceable due to weather, oil slicks or an accident. All cars must stop as quickly as possible. The checkered flag indicates the finish of the race and is waved for all finishers.

Some racing terms
cc: These letters stand for cubic centimetres. There are 1,000 cc’s in 1 litre.
Chassis: The car frame, wheels and suspension.
Formula: A set of rules for entering a race. They often specify the size of engine and design of the car.
Litre: The size of a racing car engine is measured in litres.
Monocoque: A chassis built as one piece.
Roll cage: A metal frame that protects the driver from injury if the car flips over.
Slicks: Smooth tyres that can only be used on dry circuits.
Spoiler: Aerodynamic frame parts at the front and rear of a car.
Supercharged: Fuel-air mixture forced into an engine to produce more power.
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