[Martin Smith]

I don't understand why you'd experience that with the BMW or Merc (I never drove the Alfa). They're pretty conventional to drive.

But my first thought is to check you steering config. It sounds like you may not have 1:1 steering but something closer to go-kart steering ratio. It doesn't sound like a setup problem.

Or maybe it's a FFB setting as that can be customized for each car.