Hello everyone. Unfortunately I am not a owner of this fantastic car and I'm not sure if I'll pick one someday (of course I would be glad to). I wanted to start with a courtesy initial post to introduce myself and show you what I've planned to do. I'm actually working on a virtual replica of a 2011 RS3 and implementing on a PC driving simulator, maybe some of you know about it, it's called rFactor. So as long as I'm reaping info there's some values that I can't achieve to find, specially the stock spring rates and sway bars diameters. Please, check my request post here: http://www.audi-sport.net/vb/a3-s3-...stock-spring-rates-sway-bars.html#post2191956 I'm also interested to find info for whatever data you can offer, like: Center of gravity height, suspension alignment, damper settings, tire pressures, etc. All info is welcome, also I'm interested on add tuing options like aftermarket suspensions, clutch, flywheels and whatever modifications, but my main worry is to know spring rates and sway bar diameter, so I would appreciate so much that info. Of course when the virtual car is done I can give you instructions of how to install and get on everything. My best regards, David.