With only 11 miles on her I would not be running at wide open throttle yet, at least 100 miles in my opinion. My 450i is rated for 48mph and I know have 200 miles on her. The rev limiter kicks in at 49mph so far, don't know if that will change in time or not. I did change all the fluids over to full synthetic at 175 miles, engine oil and diffs and I know that has made a small difference, idles better and gets up and goes noticeably better. Don't know what the red line the 500 at but the 450i is set at 7500 rpm, not sure I would run it wide open at that rpm for very long. I have found around 35-40 on the road is plenty fast enough. I must say though it is comfortable at speed, ride and responsive steering is a plus.
Another poster reported on the hour meter and on my machine it pops up when cycling thru the menue and uses a tiny hourglass symbol but the numbers and symbol is quite small so look closely. When you press the right button it scrolls from odometer, to trip odometer, then clock and somewhere in that cycle the hour meter pops up just look close to see it. Have the driving lights on to illuminate the dash to see it better.