I'm in the market for new wheels and tires and am debating between 16"x7 or 17"x7.5 or 8 wheels. I'm trying to objectively determine which will give me better handling and performance while meeting certain real-world objectives and, here's the crucial point: I am trying to take "appearance" out of the equation and focus on functionality. I'd love some input on my thought process which, may be flawed. Here goes: If I get BBS RX wheels (19.5 lbs) at 16x7 with 205 tires, I am figuring a lighter configuration than the same wheel at 17" with 225 tires. I plan to buy good performance summer tires. Now I figure, the lower weight should give me better acceleration and braking. I'm also figuring, possibly incorrectly, that some aspects of handling should be better due to the lower mass. What the 17" should give me is better traction due to bigger tire contact area and, quicker transient/steering response due to the lower profile sidewalls. I spend about half my time in Manhattan trying to navigate car-size potholes and the other half in the country, sometimes on dirt roads. Functionally speaking, do you think the 16's will be a better bet for these conditions. What about the handling of 16" vs 17"? Thanks.