Ok the tire/wheel combo weighs about as light as it can be, no the factory brembos will clear no less that 17 inch rims, and even then it depends on the rim. The car can stop on a dime, and in the cobalt forums everyone has brake problems EXCEPT me, maybe it's cuz I never USE them huh? Everyone around here is a light to light driver, I drive a mile out, time my lights and adjust my speeds even if it means doing 30 in a 55 or 25 in a 45, I always end up with a nice cushion and long stretches without ever tapping the brakes in town.
The tires supposedly average 20-24K miles before change, I have done the math, at the rate my tires are wearing I won't "require" a change by state law until 70K.
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