Wheel and bumper weight differences
Great question and the answer will depend massively on the wheels you pick but potentially a really big difference. With unsprung and rotating mass, even a small reduction is valuable!
Here's my example: 15x7 Rally wheel with 235/60/15 weighed in at 53.2 lbs.
Aluminum 15x8 with 255/60/15 still came in 4.2 lbs lighter!
Doing this from my phone...looks like I can only attach one pic per post??