Guide for buying Audi A4

[Pure-German-Power]

Hey guys I'm on the verge of buying an Audi A4 (2010/2012) not sure which year to go for but it will either be 2010 or 2012..

few things I wanted to know??

Is there much difference between the S line and Technique ??

what is the pro's and con's to look out for when going to buy these cars??

And if i was to remap my car,which is the best remapping system to go for??

Any help much appreciated ;-)

And sorry if there is already a section for buying,as I'm new to the site I didnt see it..

Cheers