Here is a picture of my ex E46 M3, doing approx. 268 km/h (roughly 167 mph) @ approx. 7700 rpm WHICH means approx. 282 km/h (roughly 176 mph) @ 8100 rpm; in 5th gear.
BTW, I did 298 km/h ~186 mph in 6th gear (with the speedo error ) The Car had Superchips software and SS Race LTW exhaust.