Hi, thanks for all the replies.
>What keys do you press?
I have tried the default (up, down, left, right), and wasd
>Have you checked your keyboard settings?
I have tried changing the default settings in stk, yes, and have now changed my keyboard setup to us. This didn't help.
>Do any keys work? (ESC?)
ESC works and left and right seem to work a bit, maybe you need a certain degree of speed for the wheels to turn. Accelerate and brake (reverse) do not do anything. Fire (default space) does, but it takes me 5 minutes to collect something!

>Does it work if you switch to US keyboard? (`setxkbmap us` in the command line might do this)
this did not help unfortunately
>Are you using the correct player for the device? Please check.
I have tried with the default user (me logged in) and as Guest, neither work.
Thanks again for all the suggestions, any other ideas?