They don't have a cam belt or cam chain the valves are electric soinoid controlled so I am not sure that the interference or non interference thing really comes into it, the piston on contact with valves would simply knock them back into the soinoid body?
Edit: the exhaust valves are of conventional design with over head cam, and the inlets although electronic controlled use high pressure oil to activate the valve, so if piston does meet valve there is still the potential for it to wreck everything,
Most pictures show deep dishing on the top of the piston so it looks like it may be non interference, but very hard to say
