Gelleråsen Arena, also known as Karlskoga Motorstadion, is the oldest permanent motorsport race track in Sweden, located 6 kilometers (3.7 miles) north of Karlskoga. The circuit was originally built in 1949 as a 1.55-kilometer (0.96-mile) dirt track. The surface was paved with asphalt in 1952 at a length of 1.600 kilometers (0.994 miles), then extended to 2.000 kilometers (1.243 miles) in 1953 with the addition of the Björkdungskurvan section. Further expansion in 1958 created the Velodromkurvan section, bringing the total length to 3.172 kilometers (1.971 miles). In 1992, the track was shortened to 2.530 kilometers (1.572 miles).

The current configuration measures 2.4 kilometers with 11 corners. The track is quite flat and open, consisting of medium-speed corner combinations with a very long sweeping turn leading into the start/finish straight. The layout is designed so that the entire track can be seen from all spectator areas. Gelleråsen Arena is currently authorized for European Championship rounds of road racing and Swedish Touring Car Championship events, with the STCC TCR Scandinavia still competing at the venue. The circuit also features a modern karting track that was officially opened by Prince Carl Philip of Sweden.