Best Wheels

I've had several dogs over the years and for some reason, they have all been strangely fascinated by the smell on car wheels/tires. They seem to be more interested in the wheels. I understand that the tires are probably going across a wide variety of interesting-smelling surfaces, but their interest definitely seems to be on the wheel itself. Anyone have any ideas?

I have a 2003 Mazda Protege. This car comes with 4-hole wheel pattern. I have a set of 5-hole rims I would like to install. Can I change my car wheels from 4 to 5 hole pattern? What would it take? Is it costly?
Do normal auto parts do this job? Pep Boys, etc..

From time to time I see car wheels that in a specific speed they seem to rotate the oposite way!!!

I know this is due to eye visual abilities to catch up with the rotation speed .. but strangely I don't see it in all cars .. so I thought it depends on the wheels alot.

Any ideas??
I want it in my car

Well i herd that if you have bigger wheels on your bike it takes less energy to move or it moves further with the same amount of energy, that a small wheel uses. So does this work with car wheels to?

Does having 17inch wheels get better mpg then 15inch wheels?

I was wonderin how much do 4 car wheels cost??? u know the regular size wheels. an estimate not really expensive wheels, u know the kind that most people buy. ALSO how much do one cost alone?(an estimate also)

I need to ship a set of 4 car wheels/tires from Orlando to Atlanta. How can this be done cost effectively, and safely to protect expensive chrome wheels?

I'd like to have some car wheels powder coated white - how much would it cost for all 4?