Probably this one, from an old SMER kit, which I think is from an old Merit kit from the 1950s.
The model had rudimentary engine detail, and the wire wheels were nothing more that a clear disc with a few spokes moulded on.
I had to scratch build an awful lot of additional detail, in addition to correcting other details.
The wheels are hand laced, 48 spokes per wheel, and all in 1/24 scale.
It is painted with custom mixed acrylic laquer automotive paint.
I started this build in about 1995, and finished it 2010.