Id like to buy an audi a4 (2008) but there are some different types of this vehicle and to be honest I dont know what kind is better than the other. For example some audis a4 (dpf 2008) inside next to the speed switcher there are a lot of functions and some other have not them. The other thing is that some audis have different form of the lights, some are like the lights of r8 and some are normal lights.
It means there are more than one type of audi a4 year 2008 or, some are newer and with newer functions? Or for example the shape of the lights some has lights the shape of r8 and some other has not them. Where is the difference in generall and what audi a 4 (year 2008) would you propose for me, what is the best audi a4, how many kw and such kinf of things?

Could someone tell me in generall about audi a4 2008?

I am sorry for my english but I am not native. Hope you know what I mean. I really need your help of you all because I dont know what to decide, what's better for me.

Many thanks, hope to find help here.

PS: Great forum, a lot of interesting informations.