Max was faster than you
5.8 Electrical systems:
5.8.1 Ignition is only permitted by means of a single ignition coil and single spark plug per cylinder. The use of plasma,
laser or other high frequency ignition techniques is
forbidden.
5.8.2 Only conventional spark plugs that function by high tension electrical discharge across an exposed gap are permitted. Spark plugs are not subject to the materials restrictions described in Articles 5.13 and 5.14.
5.8.3 The primary regulated voltage on the car must not exceed 17.0V DC. This voltage is defined as the stabilised output from the on-car charging system.