Im sorry to hear this but as every one else has said , why the fuck lay down and take it up the brown one if you are as you say innocent ??

Im sure as black is black that if i was in your shoes i'd be up on a murder charge if i was really innocent and the "mate" was getting off scot free

Drink driving will cost you for the next 10 years on your insurance so if your going to let this lie then you are some kind of muppet

Appeal is the only answer with a proper solicitor NOW !!