The Campeonato Nacional de Velocidade (CNV, ''National Speed Championship'') is a Portuguese

motor racing An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gene ...

competition, encompassing

GTs GTS may refer to: Organisations * Game Technology Solutions, a Sri Lankan game development studio * Game Theory Society, a society for the promotion of research, teaching and application of game theory * GTS (company), Global Trading Systems, an A ...

, prototype racing cars and

touring car Touring car and tourer are both terms for open cars (i.e. cars without a fixed roof). "Touring car" is a style of open car built in the United States which seats four or more people. The style was popular from the early 1900s to the 1930s. The ...

s. It was established in the 1960s. The competition was established in the 1960s and today has

Group 5 Group 5 may refer to: * Group 5 element, chemical element classification * Group 5 (motorsport), FIA classification for cars in auto racing See also * G5 (disambiguation) {{Disambig ...

and

Group 4 (racing) Group 4 referred to regulations for sportscars and Grand tourer, grand touring (GT) cars used in sportscar racing, racing and rallying, as regulated by the Fédération Internationale de l'Automobile, FIA. The group was introduced in 1954 and ...

cars. In the 1970a and 1980s,

Group A Group A is a set of motorsport regulations administered by the FIA covering production derived touring cars for competition, usually in touring car racing and rallying. In contrast to the short-lived Group B and Group C, Group A vehicles wer ...

and

Group B Group B was a set of regulations for Grand tourer, grand touring (GT) cars used in sports car racing and rallying introduced in 1982 by the Fédération Internationale de l'Automobile (FIA). Although permitted to enter a GT class of the World S ...

cars took part towards the end of the 1980s and into the 1990s. This was superseded by

Group N In relation to international motorsport governed by the FIA, Group N refers to regulations providing "standard" large-scale series production vehicles for competition. They are limited in terms of modifications permitted to the standard specifi ...

, that is, production cars with similar specifications to road-legal cars, from the end of the 1990s until 2006. In 2007, the Campeonato Nacional de Turismos was created for S2000 cars. In 2011, this championship ended because of lack of participants, so the GT cars went to race in the higher class. Since 2010 the series has been organised by Full Eventos under the " Racing Weekend" brand. As of 2015, the competition consists of five qualifying races and two finals. The CNV is run alongside other competitions such as the Campeonato de Portugal de Clássicos and together they are known under the English-language name "Racing Weekend". These other competitions include: * Campeonato Nacional de Sport Protótipos * Campeonato Nacional de GT * Campeonato Nacional de Turismos

Heats

External links

* * (language=pt) Sports car racing series Touring car racing series Motorsport competitions in Portugal {{Autoracing-stub