[scaleslotcars]

Bog standard Airfix/MRRC Slimline chassis and motor Marlon.
By the look of the chrome steering unit and what I think I can see of the wheel inserts, probably originally from a BRM F1

 

[scaleslotcars]

Guide is just one of the many variations that exist, the reason I asked for a photo on another topic requesting a guide for a MRRC steering unit