The sunroof wouldn't open/close without manual assistance at 40K miles.
There was a problem with the fuel injectors at 50K miles.
The build quality is very good: it still feels solid.
The road handling is excellent, but the steering is a bit light for my taste. The engine/transmission yields plenty of power, but can be a bit loud.
The seats are outstanding, both front and rear, although the rear space is a bit tight for large adults. The interior is nice and simple.
The trunk size is small, but deep.
I bought a 1997 j30 in 1998 with 58,000 miles on it. It's an ecellent car. I now have about 150,000 miles on it -- still no rattles, engine smooth, very few problems. It's held up. If you take it in every 3 or 4 thousand miles problems will be prevented an never happen. I would definitely buy anothe infinit. I still get compliments.
I. Goldman
California.