Finally getting an M5 e60... Any advice?

First of all wanna say Hi to every BMW fan here at Bimmerfest! Wish you guys safe road and no tickets!!! Let me begin my story... Right now I owe E65 BMW... 2005 model... This is my first BMW ever... I got it in 2008... (Didn`t understand BMWs until 2008 at all) When I first drove it I realized a simple thing... I WAS NOT CORRECT ABOUT BMWs... It`s an awesome car!!!!!! I used to have MBs... They are nice but not my style!!!! So e65 is very reliable car i can say... The only issue i had with it is its sound system... (i guess half of the owners experienced or experiencing the same... ) Anyway i DO recommened this car!!!!!! A week ago i finally decided to get an E60 M5... So can you guys give me some advice of what should i take care of when buying it... What is more reliable: SMG or regular automatic transmission? etc... Thank you guys upfront for any help!!! Enjoy your Bimmers and God Bless YOU!!!!!!!

Congrats on the decision and I wish you the best of luck in your search. There are a lot of M5s out there for sale and the pricing is pretty fair for the most part.
I would recommend doing research on the web because you can find tons on information out there from other owners. Also, when you go to drive the car insist on a long spirited test drive. I spent around 40 minutes on my test drives and made sure to test the car at high speeds (around 140MPH) and on back country roads. I wanted to make sure the brakes were warmed up and so was everything else. When shopping for this type of car the sale person should understand these requests.
Another thing I highly recommend is purchasing some sort of extended warranty coverage. This should be a dealer warranty or by purchasing a CPO M5. I do not recommend 3rd party warranties because I have had issues with them in the past.
I spent the last year looking and driving M5s and CLS55s. I finally made my decision on 10/30 of this year to pick mine up

Take your time and good luck!