How to start engine in show room

I did this before when you can open each door and get in and actually start your engine and rev it, just forget how to do it

Well I just got into the driver’s seat and the option appeared on the steering wheel to start the car. Pressed A and voila. Edit: on Subaru BRZ the START element appears to the bottom right of the steering wheel so maybe you just need to spot it.

Nah it’s not that…I only get the option to “explode” the car so the hood, doors and trunk opens. Before I could open each door separately, and even sit in the passenger seat…