The thing about LFS sounds is that they are linked directly to the mechanicals of the car. Unlike the 'nicer' sounds in NFS which are just that, sounds. They don't confere and infomation about the state of acceleration or give any 'real time' feedback of throttle positions and the like.
LFS sounds will, I am sure, get better as the programming progress's towards S3 but you do know that you can edit the sounds yourself within LFS don't you? I can give my FZR a very boxery bark which sounds very throaty with just a little bit of tweaking. Explore LFS and the possibilties it offers you before falling head over heels in love with 'looks but no substance' sounds. LFS may not have the looks of a catwalk model, but by god it can out think one. And I know which one I'd rather take down the pub.