I've added the iconic Tin Car ribs on the lower body panels and the matching detail on the window pillars above.
Although I have still to add the doors at each end they are unmistakably taking on the look of an FR Tin Car now.
The second layer of detail makes a big difference to the rigidity of the sides and the strip which I fitted inside the window frames to represent the rubber seal firms them up nicely too.
The bottom one of the pair has the extra pillar where the gas bottle cupboard was added in and I've put on some of the extra details on the removable panel which you can see.
The doors, next, I think.