The tractor I have started somewhere in the beginning of the year was Thunder Models' S60 Stalinetz:
This was in fact a license built US "Sixty" tractor but during the was, these machines were mass-manufactured to pull heavy equipment such s the 155mm ML-20 howitzer that made up the first part of the build. The kit by Thunder Model (CN) is very detailed, featuring a box full of grey styrene, copper wire and a fret of PE. It builds into a fine model:
The build starts with the engine, making up a big part of the challenge. There are lots of tubes, connections, exhaust pipes, spark plugs and other fine details...
This picture shows the - not yet cleaned - spark plugs with a 2 EUR coin for size reference, these are in styrene. Must be the smallest parts I ever handled. I used a wet toothpic to add them to the model...
The engine is 80% done now - but as said, I had started it somewhere in February...
I finished the main parts assembly for the ML-20 too, The secondary shield attachment involves the most complicated PE bending work I ever took on in my whole life (I am 46)... Phew, happy to have pulled that one off...
Happy modeling!
Michel.