I was watching a YouTube video last night featuring a 2600hp Calvo Viper. During the video, the owner mentioned his Instagram page, which I later visited.
I noticed a post that can be seen here: https://www.instagram.com/mc_rippinz/
Looks like there is some really serious cars and bikes doing a roll racing event in Kansas next month. The round of 16 is half GTR's and the rest are Vipers, Underground Racing Lambos and Kawasaki H2's.
Round of 16 is on April 17th, round of 8 is the following day at an airstrip.
Should be amazing to see how the GTR's do. Some heavy hitters for sure. Shifts3ctor will be posting live coverage on their FB page it looks like.