Yeah, I drive the J30 most of the time. Unfortunately more than I drive the B5.
The suspension is okay, considering it is a luxury cruiser. The part sharing you're talking about is with the 300ZX. They took the 300ZX NA powerplant and stuck it in this behemoth. Probably has similar performance figures since they're both big, heavy RWD cars. Also, the J30t is supposed to have the same Super-HICAS 4-Wheel Steering as the Skyline in Japan, but I've never really seen it happen.
Only gripe is that because it's been discontinued, it's a pretty obscure car to find information about. The only tricked out ones have been done with custom work. One was totally ICE'd out (amps, speakers, subs, the whole bit), and the other one was pimped out (20" Chrome wheels, lowered, neon

uke
We've got a ton of dents on the hood, and I think someone said it's aluminum, so we're pretty out of luck with that.......no parts available I'll guess.....