Thanks for the workup. I am going to go with the 16 s . I'll let you know. Thanks again.

Yes. LED bulbs make sense now that I've researched the. Thanks.

I find the instrument cluster on my 2006 S80 to be hard to read at night as the numbers themselves are not lit up. Does anyone know of a different instrument cluster that would work or how to light this one up better ?

The front brake rotors are the same size on both years. Same bolt pattern also.

Tire sizes 2004 215/55R 16
2006 225/50R 17

Thank you for your knowledge about this.

I recently purchased a 2006 S80 with 17" tires. Prior to that I have been driving a 2004 S80 with 16" tires. Both are front wheel drive 2.5T s. I like the feel of the 16" wheels better than the 17" ones. Also I had just bought tires for the 2004 before it became too expensive to ...