Roadhog XL from Rocket League. I filled in the original model using 3D Builder to make it solid and much more printer-friendly. I also included the Foreman wheels that will snap in to the axles, or you can use any of the other wheels on my profile along with the "Wheel_addon" file to make them compatible.

I recommend printing the tires separately out of Varioshore TPU (or regular TPU is fine too) but I included the wheels as one piece just in case you can't do multimaterial.