thats how fast most racing cars go. it just looks insanely fast because its not on a real racetrack where theres no houses and people nearby to really compare the speed to.
if that blows ur mind...check out these skillful F1 drivers. watch with sound on.
I know they have superbike racing around a track. I didn't know they had open road bike racing going through towns. I does look so much faster on a bike. The helmet cam on those bikes were going so fast It gave me adrenaline rush just watching it.
The Isle of Man tt is a small island of the uk and is a bikers paradise for a few weeks a year the hole place becomes one massive track. If your into your bike racing deffintley try and get over there once in your life to witness it.