Funny that! I DID crack my oil pan about a year ago coming out of a gas station! I didn't notice it until the next day when there was oil ALL over the driveway (don't remember why I hadn't parked in the garage...). Anyway, I drove it straight to the mechanic (still oil in it). A day later, and about $150 (atleast I got an oil change! ), I got my car back. Instead of replacing the oil pan ($$$$$$$$$), they were able to JBWeld it back together. Well about 30k miles later, still doesn't leak!
BTW, I heard the entire assembly for the metal skid plate was about $180. MBenz (Steve) once gave me all the part numbers. I will purchase it some day,............

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)