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I've never understood why I see so many cars on the road with a lot of rear camber and very little in the front. I always assumed it was a drifting thing because in the rear you're going to have less grip from that set up. It's not as simple as "more camber means more grip". There's a reason every RWD race car has more camber up front. Too much camber leaves you with less rip, not more.
When you enter a corner, deflection of the suspension (from weight being shifted to the loaded wheel) causes dynamic camber changes and the tire will gain positive (or become less negative) camber. When you exit a corner, weight shifts to the rear of the car and you get deflection of the rear wheels.
This is good if you load up a wheel in a corner and you go from lots of negative camber to no or positive camber and the deflection of the wheel makes the tire flatten out relative to the road and you maximize your contact patch. There's more weight change to the front of the vehicle in a corner (braking & turning) than the rear, so generally a car wants more front camber than rear since there's more deflection of the front wheels.
Some rear camber helps on acceleration since the shift of weight to the rear of the car under acceleration causes deflection of the rear wheels. But not near as much as in the front going into a corner. So why all the rear camber on some cars? I suspect it's just people who don't know what they are doing or think it looks cool.
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