B+O-
Yup, if you catch a stock 4th gen on the highway you'll take 'em.. restrictive y-pipe and IM design optimized for low-end and midrange. But watch out for us from a dig.
The 2000-2001s (5.0 gen, VQ30DEK) had a variable intake manifold that can be retrofitted onto the 4th gen with a bit of intuition, adding plenty of area under the curve, especially at the top-end--60whp is added at 6500rpm.
If you come across a 2002-2003 (5.5 gen, VQ35) 6 speed and are without SIGNIFICANT mods, prepare to bite the dust.

Those things will HAUL and hit high 13s with boltons.
In terms of handling, my 4th gen with stock suspension and wheels was SIGNIFICANTLY funner in the mountains than my mom's old G1 legend. Give it a smooth track and the beam isn't hindering at all. However, get into some bumpy stuff and the car is less capable, especially the chassis, which is made of pad thai. I've added a nice little "LTB2" and FSTB to stiffen up the front of the chassis, but the rest is still sloppy as all hell. Next paycheck I get will be going into subframe connectors and full cross-bracing.
If anyone is SoCal or the SB area with a 5 or 6-speed is up for a run or a meet-up, I'd be happy to join up and do a little friendly comparison. Currently my wrist, knee and ankle are pretty fucked up from a motorcycle accident, but we can work something out.

Always wanted to drive a 2G, and of course would return the favor.