They styling was "improved", but everything remained the same. KA24DE and 4spd auto or 5 manual.
I was good friends with the local chapter of Altima owners, so I would cruise with many of them. I personally drove the my friends' altimas to see how the felt.
Here are some kitted examples of the L30 Altima. I believe both of these are Ground Design 2000 body kits.