As a veteran user of GPL, GT Legends, rfactor 1 and a past single seat racer (1970's - woops that ages me!) I am a bit shocked by the very odd straight line steering in most of rfactor2's single seat racers, apart from F3. Somehow, someone at ISI seems to have got it into his head that historic single seat race cars have inherently unstable straight line steering. I drove formula 3 and other single seat cars in the mid 70's and every car I drove was rock solid in straight line stability. It seems to me that only the F3 cars in rfactor demonstrate this stability. The brabham, F2 and F1 cars are all over the place. There seems to be a misconception that these cars have loose steering arms or track rods, because while going straight at speed, there is a kind of dead spot in the steering where the front end wanders all over the place for no logical reason. This year I attended the wonderful Goodwood revival meeting where I saw the entire Lotus historical suite of single seat cars from the lotus 25 to the 49, in addition to formula 1, 2, 3, cars made by Cooper, Brabham, and BRM. Speaking to some of the drivers, I asked about castor, steering stability and straight line stability. Every single driver I spoke to confirmed that unless the setup was way off, nearly all of these cars were very stable in a straight line, and under braking. So why is there this awful and artificial feeling of instability in the rfactor2 single seaters, f3 excepted? Is it that someone at ISI really believes this needs to be imposed in order to make the cars "authentic"? If so, they've got it badly wrong. Or have I missed some kind of extreme castor or other setting that fixes this. Thanks for any useful advice.