I'm not sure about this but I think the autotranny in the xfire matches revs when you downshift. I say this only because the few times I downshifted to slow down I never felt any jerking or drastic engine braking, only a gradual and smooth slowing down exactly as if I had blipped the throttle. But I never really watched the tack to verify this. I don't hear an actual blip of the throttle but it is more like a perfect match of rpm and speed.