I rewired the original fit optional drive lamps on RTA soon after I bought it. A single, loose trailing wire to both lamps was not in my ideas of efficient (and safe) wiring. They are now fed via a cable each, via a relay and I could go up from 55W to 80W. The max allowed is higher than 55W, but not as high as 100W - but I've lost my source info...
I really ought to rewire the whole car - where the wiring is exposed to the elements the insulation is going hard and will crack - all sorts of problems start then!
Peter, single front lights on cars became illegal after a certain date (50s?) and additional lights had to be fitted in pairs.
Cheers,
