Very impressed. This version is miles better than the previous and now has the feel of the GT4 version. After watching a few videos online I think you may be missing a few kerbs, but the overall feel of the original is there, good work. I used to love playing this track back in GT4 day's but I used to prefer the reverse track layout. May I make a request and ask If you would do a reverse version of this track and possibly add a few kerbs in key places?
I totally feel your pain with trying to get this track right. When creating my own versions of tracks from past GT titles, all the maps and circuit information that I could find online were nowhere near accurate to the actual feel of the original tracks. I found youtube is a very useful source of reference and helped me a lot with track design and especially with kerb and scenery placement.
I have played a few of your tracks and this one is definitely your best work, with Sonoma Raceway a very close second.
Both this and Sonoma Raceway are the best versions I have seen on GTPlanet. Keep up the good work!