Classic Endurance Racing (commonly abbreviated as CER) is a sports car racing

Sports car racing

Sports car racing is a form of circuit auto racing with automobiles that have two seats and enclosed wheels. They may be purpose-built or related to road-going sports cars....

 series founded in 2004 by Peter Auto Ltd. It features classic sports cars and its aim is to support the endurance racing revival.

Format

The series consists of events in various European countries. It currently consists of five rounds as a support event for the 2009 Le Mans Series season

2009 Le Mans Series season

The 2009 Le Mans Series season was the sixth season of Automobile Club de l'Ouest's Le Mans Series. It was contested over five events between 5 April and 13 September 2009....

. Each race is one hour long.

Regulations

All cars are to be manufactured between the years 1966 and 1979 and consist of four classes, Proto 1 and Proto 2, which consist of Group P and S cars with either +2.0L or -2.0L size engine. There are also two grand tourer

Grand tourer

A grand tourer is a high-performance luxury automobile designed for long-distance driving. The most common format is a two-door coupé with either a two-seat or a 2+2 arrangement....

classes, GT1 and GT2.