BMW HP4 Race specs released! $78k , 212hp, 377lbs
If you think about it that isn't crazy. Top MotoAmerica teams (Monster Energy Graves Yamaha and Yoshimura Suzuki) swap and inspect engines every 600 miles!
BMW knows this bike is going to be used as track/race only (hard miles) so 5,000km seems like an appropriate number for an inspection/rebuild. If you can afford this bike, you won't care about replacing engines