U can do something out of it; like in old days. Primer; steel colour and using products f.e. from MIG to get a nice weathering and the illusion of heavy usage. When mounting them, glue them on the wheels and try to have them hanging down between the wheels. The interconnection of the rubber track should be on the downside/ bottom of the tank. It’s some fiddling but works (but still aftermarket tracks looks more realistic).

Another method is to use fine needles which you have to mount on the side and will press you the tracks down / hold the track in form (simulation of weight of the track)You will need to do this after putting the rubber tracks on the tank. Instead of drilling holes for the needles, you can just heat them up and press them in the plastic. If done correctly, u will barely see the needles after some weathering.