Hey, coming from learning to drive with a minivan, my Grand Prix (my first car) handles awesome. I always take a sharp 90° turn at the 30mph speed limit, and watch people behind me slow down on the same turn. Except for this morning, a Camaro kept up with me, lol. Sometimes when I drive one of the work vans, I accidentally do the speed I usually do in my car, and feels like I'm about to flip the thing.
Of course there's a lot better handling cars out there, but I love the way my car handles. I don't think I'd like an insanely stiff suspension like you see on those sporty neons, with 0 body roll, it almost looks dumb. And if I do ever want it to be a bit better, I'll throw a Dorman sway bar on it. The Moog links on the stock bar was already a large improvement.
To the OP, if you're looking for better tire wear, less weight isn't the answer. If you're looking for better handling, do the dorman sway bar with moog links, and new struts if you really serious.
You are coming from driving a brick that has a high level of center of gravity. Obviously a GP is going to have awesome handling compared to a mini van.
My point exactly, I thought it was obvious enough.
2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come. 2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits. Sold.