Gran Turismo 5 gets a version update to 2.09. Included are a range of fixes and enhancements. One enhancement has been the noise which has a comparison in the video below. Polyphony Digitals view was the sounds in GT5 were "too perfect". This drew a load of reactions all seemed to disagree. From my point of view they have been too clean and wooden. Just my 2 cents from driving race and sports cars. Have a listen to the comparison video.