i just bought a 87 4000 cs quattro and was wanting some opinions on it
also it runs kinda ruff when it is cold but runs great once it is warmed up any thought s on that im not familiar with these Audi's so any advice would be great

 

engine is in the front, under the hood...

maybe want to check out the o2 sensor? a good option would be the heated seats. i wish mine had them!

 

enjoy it. I have 2 of them, both with 200,000+ miles on them. Still running strong. They do tend to have noisy lifters when you first fire them up, but don't be alarmed its normal. Great car. Great fun in the snow. Don't expect great speed, but you can expect great handling.