1:1 Steering only in certain cars.

Am I missing something obvious here?
In most cars the steering is 1:1. The on screen wheel turns exactly as my physical wheel does.
But in some open wheelers (maybe all, I haven't tried them all yet) it's noticeably out by quite a margin.
If I re-calibrate my wheel, and set the ratio from 900 to something around 540, it seems a lot better but this is something I'd rather not do every time I want to change car type.
I'm using a Fanatec CSW 2.5.

 

I had this. Make sure your wheel is set SEN = AUT

 

Fantastic, thank you that sorted it.

 

must be missing something, where can I find that setting mate

 

Its in the settings actually on your wheel. scroll through til you get to SEN.

 

Is it set to AUT (auto)?