Can you put 16 rims on a vehicle that has 18 rims now?

Yes, you can put 16-inch rims on a vehicle that currently has 18-inch rims, but you'll need to ensure that the new rims are compatible with your vehicle's hub and bolt pattern. Additionally, you may need to change the tires to fit the smaller rims, which could affect the vehicle's handling and speedometer accuracy. It's advisable to consult with a professional to ensure proper fitment and safety.