Firstly great job. I know this is a client car, so you dont' have to answer to this comment, but:
man, I just can't believe people allow their cars to get into this condition. Yeah, what we see is all topical and superficial, but a dirty, disorganized, messy car speaks volumes on the potential lack of care on routine maintenance tasks, and the general treatment and preceived "abuse" the car would have gone though.
No I dont' see using the car at a track as "abuse", as long as it's well maintained for the track duty, but it appears this car is just a daily driver.