Yeah 400E's are great cars!
I have one myself, a 95 though..
good power (the 944 turbo's faster

), VERY smooth.. it's got that smooth kind of acceleration.
also.. it sounds awesome above 3000 revs/min. w/ the throttle wide open
let me see.. nightmares...
I've had to:
replace the evap (don't ask how much) and all the vacuum actuators while at it
replace the wiring harness
distributor caps, rotors, plugs, filters, fluids, etc. (90k mi.)
other than that it's been flawless..
i also had the engine mounts replaced.. more because I just wanted to replace them. One was already deteriorating but the other was good.
replaced the front speakers, the sound system is now awesome! Really good for stock
above all it still looks good in my opinion
here's mine..at a recent get together with much newer MBs
http://users.rcn.com/holsonyap/E420_Celica/IMG_1675.jpg