It's really ironic we have moved from beta to full version recently and most issues reported for the first beta still exist. I've posted this for the beta, there hasn't been an update or at least an understanding about it by ISI. So have a look (or better listen ...) here: http://www.youtube.com/watch?v=1SifJww1a3c Again, it sounds like the audio was recorded on a grammophone record with lots of scratches on it. And NO, it's not a soundcard or video/youtube-compression issue.
By the way. If a modder can add the Drs to this classe. We are near to start the 2013 season and this feature is not yet on it. I agree, this Fr3.5 was built from the 2011 model (without Drs) but this car is so underrated by the community (mostly because of its "undriveability" on the firsts builds) and this feature could really help boost.