I have a similar situation...and a front lip. The only times I've ever scraped, is when I was distracted and not paying attention.
Go slow...take it at an angle...you should be fine.
2011 E92 M3
| Melbourne Red | Black Novillo w/Carbon Leather Trim | M-DCT | Competition Package | Premium Package 2 | Convenience Package | Enhanced Premium Sound | Heated Front Seats
2004 E46 M3
| Silver Grey | - Retired