How do I elevate the seat in the car I'm racing? I'm using one of the openwheels, and the seat is very low.

Options > View > Z offset

You can use costom view too, imo it's better than raising Z offset.

Thanks very much guys.

Incidentally, I have an S2 license. I wonder why that doesn't show up in my profile?

Quote from MadMonk :

Incidentally, I have an S2 license. I wonder why that doesn't show up in my profile?

You bought it right? If you bought and you login here with the details of that same account it should show up as s2 licensed.