Thanks for answer.
So my problem is this. I have 2011 audi s6 but had acident from behind all i want to do is cut back part of car from around midle of back side door and put audi a6 2006 and stick it after all i have to put 2011 model botild bumper and tail lights. Wil it work if u Know?
you have a 2006,2010 or 2011?
either way 2006 has a different trunk lid bumper and lights, you can fit 2010 rear end on it but will need coding and rear connectors re wired.
your first post says you have a 2006, other post says you have a 2011 s6?
There was also changes in the 2011 chassis, and it has different part number. You may find things don't line up when you try and weld it together. There are also differences between front wheel drive & quattro chassis so subframe mounting points may be different. your best trying to find a smashed up FL S6
Front wings, doors etc may be the same but it's underneath the main chassis of the car you may find problems, quattro models had a bigger fuel tank so there could be changes to handle that, subframe mounting points FWD v 4WD suspension mounting etc etc.. If you are getting the 2006 chassis for nothing then it could be worth the punt, but if you spending good money I would check it over first, also you may have better chance of it fitting if the 2006 car is quattro.