The bike's time are relatively slow, and now i can understand the reason.
if i'm not wrong Saurma lap times are the follows:
Ducati 848: nurburgring 8.25
Ktm RC 8 R: hockenheim: 1.56
Bmw S 1000 RR: sachsenring: 1.39.5
Test from different magazine with professional bike drivers show that Ducati 848 could lap Nurburgring in about 8.00, Ktm RC 8 R could lap Hockenheim in about 1.52-1.53 and Bmw could lap Sachsenring in about 1.34-1.35.
Bmw is a fantastic bike, in Italian magazine show incredible performance: 1.52.4 Monza - 2.00.6 Mugello.
To be honest i think 1000 cc bike could not compare with supercars in Nurburgring (too much corners and too bumpy track), but in Hockenheim Motorrad magazine show that BMW could compete with Porsche GT 2 RS and the same could apply to Sachsenring (with a little edge for car, i suppose).
P.S.: sorry for my english, i'm italian