Single-Seater Racing

Single-seater (open-wheel) racing is perhaps the most well-known form of motorsport, with cars designed specifically for high-speed racing. The wheels are not covered, and the cars often have aerofoil wings front and rear to produce downforce and enhance adhesion to the track.

Single-seater races are held on specially designed closed circuits or street circuits closed for the event. Many single-seater races in North America are held on "oval" circuits and the Indy Racing League races mostly on ovals.

The best-known variety of single-seater racing is the Formula One World Championship, which involves an annual championship featuring major international car and engine manufacturers in an ongoing battle of technology and driver skill. Formula One is, by any measure, the most expensive sport in the world, with some teams spending in excess of £110 million per year. Formula One is widely considered to be the pinnacle of motorsports, and a seat in a Formula One car is undoubtedly the peak of any driver's racing career.

In North America, the cars used in the National Championship (currently Champcars and the Indy Racing League) have traditionally been similar to F1 cars but with more restrictions on technology aimed at helping to control costs.

Other single-seater racing series are GP2 (formerly known as Formula 3000 and Formula Two), Formula Nippon, Formula Nissan (also known as the Telefonica World Series), Formula Three, and Formula Atlantic.

There are other categories of single-seater racing, including kart racing, which employs a small, low-cost machine on small tracks. Many of today's top drivers started their careers in karts.