BMW on the E9X: "Eight separate throttle butterflies operate precisely and independently for amazingly quick throttle response." So it's got one per cylinder (I did the math myself! ). And no dipstick on the E9X (which was the reason for your "dipsitick" comment, right?) BMW is not claiming any performance improvement (at this time). So I'll skip it and spend the money on bourbon instead. Wait... I meant tankfuls of gasoline.