oh wow thats unlucky, maybe keep away from the 320i.
Come over to the 318i
If it makes you feel any better i reversed my car into a post last month
It hit right next to the bumper sensor, i though i should take a photo and show to my main dealer when i was in for servicing... how ironic it should hit there (it was a low fence post at my new house)
Now i have to call the bumper clinic £££