Simple tank model with captured wheels based on the British challenger tank.

Tank base was printed at 0.3mm with white ABS at 10% infill.
Wheels printed at 0.3mm with white ABS 30% infill.

Wheels should be printed at a lower layer height than I did to ensure the wheels don't bond to the tanks base.

Top of tank was also printed at 0.3mm with 10% infill.

I have provided the base of the tank with the wheels attached and with the wheels separate.