I got my MP Convoy Mk III second hand at a pretty cheap price, although the original owner had used a fine point black marker pen to draw in panel lines on the upper legs and shins. Today I bought a thin brush and tried to paint in the grooves in order to conceal the panel lining and make the toy look more like it originally did.

The grey grill on the crest has also been panel lined, but I forgot to get grey paint. Ah well, next time.