Where was the main event of the World RX of Germany originally founded?
Rallycross Rallycross is a form of sprint style automobile racing, held on a closed mixed-surface racing circuit, with modified production or specially built road cars, similar to the World Rally Cars, although usually with about 200 bhp stronger engines, due to e.g. their 45 mm turbo restrictor plates. It is mainly popular in the Nordic countries, the Netherlands, Belgium, France and Great Britain. An inexpensive, entry level type of rallycross is the Swedish "folkrace" or its Norwegian counterpart, the so-called "bilcross". The folkrace is most popular in Finland where it was founded back in late 60's. In Europe, rallycross can also refer to racing 1:8 scale off-road radio-controlled buggies.
Westfalenhallen Westfalenhallen (English: Halls of Westphalia) are three multi-purpose venues located in Dortmund, Germany. The original building was opened in 1925, but was destroyed during World War II. New halls were built, the "Große Westfalenhalle" opened in 1952. The capacity of the arena is 16,500. The "Kleine Westfalenhalle" served also for balls, exhibitions and concerts, such as the Dortmunder Philharmoniker, until the Opernhaus Dortmund was opened in 1966.