2015 was the first year for the Audi A3 sedan (it was available as a wagon from 2006-2013).
Sadly, the center seat is pretty useless due to the rigid buckles for all 3 seats, the prominent bump at the bight in 2C, and how very narrow 2C is. Adults trying to sit in the center may notice that the lap belt is fitting them poorly (resting on their belly instead of their lap) as it is anchored high in the seat crease.
If you need to put a car seat in 2C, try a Chicco Fit2 or a rear-facing Clek Fllo – they’re likely your best chance.
For information on the 2006-2013 Audi A3 wagon, click here.