This is an image of a K12S that was rear ended by car doing 30MPH. The bike was at a stop light and the car, woman driver on a f*cking cell phone, hit it from behind at city speeds.
The rider survived with little damage. This image shows how well the bike took the abuse.
The soft sport rims (an inherent safety design by BMW) acted like a bumper; the exhaust was pushed up and the rear end was also pushed up. The final drive visually looked unharmed.
This is a testament to product design at BMW. These guys are nuts about safety and here you can see it paying off.