Question: Where was the main event of the World RX of Germany originally founded?

Context articles: 2016 Euro RX of Latvia
2016 Euro RX of Norway
World RX of Germany
Volkswagen RX Sweden
2016 Euro RX of Belgium
2017 World RX of Sweden
Rallycross
2015 World RX of Norway
2016 Euro RX of Sweden
2016 Euro RX of Barcelona

The 2016 Euro RX of Latvia was the eighth round of the forty-first season of the FIA European Rallycross Championship.
 The event was held at the Biķernieku Kompleksā Sporta Bāze in Riga, Latvia as an undercard to the 2016 World RX of Latvia and was contested by the Supercar (fifth and final round) and Super1600 (fourth round) classes.
 It was the first ever European Rallycross round held in Latvia.
The 2016 Euro RX of Norway was the fourth round of the forty-first season of the FIA European Rallycross Championship.
 The event was held at the Lånkebanen near Hell, Nord-Trøndelag as an undercard to the 2016 World RX of Norway, and hosted the Supercar and TouringCar classes.
The World RX of Germany is a Rallycross event held in Germany for the FIA World Rallycross Championship.
 The event made its debut in the 2014 season, at the Estering circuit in the town of Buxtehude, Lower Saxony.
Kristoffersson Motorsport is a Swedish auto racing team owned by racing driver Tommy Kristoffersson.
 It currently competes in the FIA World Rallycross Championship and Swedish Touring Car Championship, with Tommy's son Johan Kristoffersson as one of the drivers.
 The team has raced under several sponsored names, such as Team Biogas.se, Volkswagen Dealer Team KMS, Volkswagen Team Sweden, Volkswagen RX Sweden and PSRX Volkswagen World RX Team Sweden.
The 2016 Euro RX of Belgium was the second round of the forty-first season of the FIA European Rallycross Championship.
 The event was held at the Circuit Jules Tacheny Mettet in Mettet, Wallonia as an undercard to the 2016 World RX of Belgium and hosted the Supercar and TouringCar classes.
The 2017 World RX of Sweden, formally known as the 2017 Swecon World RX of Sweden, for sponsorship reasons, was the seventh round of the fourth season of the FIA World Rallycross Championship.
 The event was held at the Höljesbanan in the village of Höljes, Värmland and also hosted round six of the European Rallycross Championship and round four of the RX2 International Series, the main support category for the World Rallycross Championship.
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.
The 2015 World RX of Norway (formally the 2015 NAF World RX of Norway) was the eighth round of the second season of the FIA World Rallycross Championship.
 The event was held at the Lånkebanen in Hell, Nord-Trøndelag.
The 2016 Euro RX of Sweden is the fifth round of the forty-first season of the FIA European Rallycross Championship.
 The event was held at the Höljesbanan in the village of Höljes, Värmland as an undercard to the 2016 World RX of Sweden, and was the only event on the 2016 calendar to have all three categories running.
The 2016 Euro RX of Barcelona was the seventh round of the forty-first season of the FIA European Rallycross Championship.
 The event was held at the Circuit de Barcelona-Catalunya in Montmeló, Barcelona as an undercard to the 2016 World RX of Barcelona and was contested by the Supercar (fourth round) and Super1600 (fifth round) classes.