These have been done before but I thought I'd give it a shot as I have a few extra Sideswipes lying around. I altered the head and went with the covered face looks. As far as paints go I used the the homemade blue blend I used on my Apocalypse on top of a base coat of Krylon black.
I especially like how you've done his flat tones & little details, as they really bring out what the mold itself has to begin with, but that can't really be noticed from the stock figures. +rep
Love it! It still blows my mind that we've never seen an official Tracks repaint of ANY Of the Sideswipe molds. Not that it would end up looking as nice as yours.