After one year of studying, brain storming and building, I'm pleased to show you my personal realization of a M3W in a scale of 1/7.4 !
I've made it from scratch, based on drawings and pictures found on the web.
This is the result with 1800 parts ad a length of 55 centimeters.
3/4 front view

side view

rear view

the engine is a functional V twin driven by the rear wheel (chain, bevel and cardan joints)
There are suspensions on the 3 wheels

zoom on the fake locking hood (2 on each side) and the wing nut.

Details of the dashboard with the 4 levers and the spitfire start button.

Seats are leather red when body is sport white

Like the real one, the front hood can be removed and the rear hood also opens

Details of the lights and police's plate.

"Drone" view

zoom on the front suspension.

voilà !
enjoy