Finished one... Mods include narrowing the track by cutting-down the bosses moulded onto the rear of the original Corgi wheels by 1.5 mm per side, adding etched stainless-steel interior and exterior rear-view mirrors and windscreen wipers from the TPM "60s car details" etch, home-made decals and registration plates and some detail painting. A couple of photos (rather cruelly enlarged!):

The decals were scanned from an old BR photo, tweaked in Word 2010, inkjet-printed onto Crafty Computer Paper's transparent waterslide paper and sealed with a couple of coats of Phoenix Precision aerosol satin varnish. When the finished bodyshell was varnished, they blend perfectly.

Having now seen the enlarged photos, I'll go back and paint the headlamp rims silver again, as I appear to have overdone the yellow a taste. Othere than that, it'll do :-)