Unless you're revving up to 6k to drop it into first gear, your engine braking shouldn't be abrupt enough to matter. Let them get squirely behind you - it is their own damn fault. If you live in a particularly retarded area, then yeah, a push-button would be nice. (I'm just thinking that would be great on my race car... push it 1/2 second before i hit the brakes so the guy behind me brakes too soon
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