@Lawson
Jeff is (as usual) right, the game emgine is doing it's very own smoothing; the only thing to care for is to make the game enigne understand what the "hard" edges are.
An improved M35 model would be really, really great. I considered re-doing it myself but dropped the plan because the model is an original creation (no kit bashing) and among the first models ever added to SH3. Such models are of historic value
That is also one reason why I never completed my work on a new model of the K Class ... the other reason was the poly count reaching 700 000
I can also offer help setting up the game files.