Should I buy an extended warranty? (for 2003 Merc E320, 46k mi

The car is a 2003 E320 with 46,000 miles. The Mercedes Dealer is selling a warranty that is supposably the most comprehensive used car coverage available (from Safe-Guard Products Int'l). It's difficult to list coverage, long list on paper. Thank you very much for your reply.

these cars are known for alot of issues after the 50k mile mark. thats why most people lease them for 3yrs 36k miles. good luck with your decision