The chords are like this:

D:

E| 2
B| 3
G| 2
D| 0
A| x/0 that means you get choose, by not touch it or do it.
E| x/2 That means the same. Eric Clapton would choose 2 here ;)

G:            A7:
                  
E| 3          E| 0
B| 3/0        B| 2
G| 0          G| 0
D| 0          D| 2
A| 2          A| 0
E| 3          E| x/0   (P.S: x means "don't touch")


Intro: D, D, D, D, D

                            G         D
Oh Lord, won't you buy me a Mercedes Benz?
                                   A7          D
My friends all drive Porsches, and I must make amends.
                                G              D
Worked hard all my lifetime, no help for my friends,
                                A7       D
So oh! Lord, won't you buy me a Mercedes Benz?

D                           G      D
Oh Lord, won't you buy me a color TV?
                          A7            D
"Dialing for dollars" is trying to find me,
                    G                D
I wait for delivery each day until three,
                               A7     D
So oh Lord, won't you buy me a color TV?

D                           G             D
Oh Lord, won't you buy me a night on the town?
                             A7                 D
I'm counting on you, lord, please don't let me down.
                            G            D
Prove that you love me and buy the next round,
                            A7            D
Oh Lord, won't you buy me a night on the town?

D
Everybody!
                            
Oh Lord, won't you buy me a Mercedes Benz?
                                   A7          D
My friends all drive Porsches, and I must make amends.
                                G              D
Worked hard all my lifetime, no help for my friends,
                                A7       D
So oh! Lord, won't you buy me a Mercedes Benz?


That's it!
This should be easy. I browse this for the brother to Seb.
It may not the coolest song, but it is a start. Next time
I browse a Coldplay-song for you, maybe... it's so many of
them, so it's not sure that I'll can browse any Coldplay-songs,
sorry, but I'll try! ;)