Better known today as the developer of Skyrim and Fallout, Bethesda once had a well-respected racing game franchise and were deep into development of a licensed Skip Barber Racing title that never released.
As a direct ancestor of iRacing, the ‘Grand Prix Legends engine’ had multiple stock car racing false starts, before eventually releasing as NASCAR Racing 4. The original NASCAR 3, cancelled and replaced by one that used NASCAR 2’s engine, is barely remembered.
World Racing Series is a realistic car simulator based on a scratch built physics engine that accurately simulates vehicle dynamics and setup options.
Kart Racing Pro is a realistic karting simulator based on a scratch built physics engine that accurately simulates kart dynamics and setup options.