I race with one of these crosskart buggy (kart cross, car cross, sprintcar, cross car) in Czech Championship, where everybody has the same suspension, chassis, fuel, tires, roll cage but different stock 600cc engine with stock gearbox. We race on dirt or rallycross circuits. This CUP is not so expensive and you can have a weekend full of racing, action and "drifting orgasm"
These buggies are in DIRT 4, which is amazing. Sounds and graphics are very good but physics are too much ardace for me.
I had to participate in two races during one weekend:
Kartcross in Nová Paka + 24 hour kart race in Prague during night.
Everything went unexpectedly well and we survived! (Never again)