The main racetrack, designed by Pohjola and Apex Circuit Design Ltd, is 4.650 km (2.889 mi) long. The complex also includes a 1.56 km (0.97 mi) rallycross track with a 0.1-kilometre (0.062 mi) joker lap, which diverts from the main circuit's finish line. Driver training facilities for local driving schools are located next to the main track, utilizing parts of the track for customizable training modules. A traffic safety theme park for families with children is also included in the plans.
The Kymi Ring covers an area of 1.8 km2 (0.69 sq mi). The infield of the track can be used for fairs, festivals, and other mass events, with space for hospitality and dining services. A business park area has been designated at the circuit's outskirts, next to the main road 12, for potential businesses, especially those in the automotive trade. Accommodation services at the circuit primarily consist of trackside cabins, referred to as "toy barns" by the circuit management.
As of September 2021, the track, paddock, and offices have been completed at a cost of 30 million Euro. The track has permits to build for 150,000m² of floor space, with 9,000m² currently in use. Hotels or grandstands do not yet exist. In June 2022, the developer was reported as being in administration due to two construction companies filing for a non-payment total of €634,000. In February 2024, a Hungarian consortium purchased the circuit.
In July 2017, Kymi Ring and Dorna Sports, the commercial rights holder of MotoGP, signed a five-year contract for organizing the Finnish motorcycle Grand Prix. This would mark the first time motorcycle racing's premier class would race in the country since 1981. The event was initially scheduled for the 2020 MotoGP calendar but was cancelled due to the COVID-19 pandemic. It was also on the 2021 MotoGP calendar but was later postponed to 2022. Concerns about the circuit were discussed by riders at a Safety Commission meeting at Le Mans. On May 25, 2022, it was announced that the event would again be removed from the 2022 World Championship season due to incomplete homologation works and risks from the ongoing geopolitical situation in the region caused by the Russian invasion of Ukraine.
Ongoing financial troubles and incomplete construction led to the FIM Motocross World Championship and Nitro Rallycross cancelling their August 2022 races at the track. The former moved the event to Hyvinkää, while the latter chose not to replace the date with a different location. In September 2024, it was announced that the circuit will host FIA World Rallycross Championship races for three years starting from 2025. In July 2025, MXGP competition was organized in Kymiring.
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