They need to add a better search function to the TIS, it is brutal to navigate. You would think by now they would have added a Goggle-like search text box. Car-specific hard copies would be great too.
The online version of the TIS is nice but it's out of date and incomplete. I use it for quickie searches but always rely on my desktop version for important tasks.
Straight lines are for fast cars...turns are for fast drivers
'04 M3 - track
'06 650i Cab - daily driver
'02 Highlander - kid hauler
'01 330Ci - winter beater