400bhp
Guru
Not too sure if it is illegal. Maybe one of our Police members can tell us.
But in many newer vehicles it is possible to isolate the passenger airbag. And on the really clever cars, airbag censors can detect if anyone is in the seat by weight etc and automatically either stop the airbag from deploying or reduce the force of the deployment.
It's illegal if the airbag is enabled.
A quick search of the car and spec doesn't appear to have an on / off airbag switch.