Why is it I've been enjoying driving my dad's 350Z so much and why is it...
 

... that my $41K S4 can't handle the same way, especially corner the same way?

Is it just the lower and stiffer suspension or is there a lot more? Different size, wider tires? Aerodinamics?

I hate the body roll on my car!

S4's are pigs and very heavy upfront..that's why.

yup...stiffer sway bars and lower stiffer suspension will help though
 

the S4 handles well despite itself...

as for the money comment, i'm sure there are cheaper cars that corner better than teh Z...not a money thing...its a design intent thing....

Weight for one, weight distribution for another.

Stiffer, lighter and sport tuned.
 

A better comparison is driving the G35 coupe, which balances the handling with lux appointments. Just waiting to see if they will make an AWD version for the coupe, like they did on the sedan...

I'm sick of our local dealer, and I'm now looking at the CTS-V, G35, M3....

Pretty sad for a long time Audi owner to have to go that way, but our dealership is terrible.

Name one. Keep in mind the STi and the EVO are not cheaper.
 

Although I am not saying price and suspension/performance should go hand in hand.

Integra Type R.... I bet would come real close....

One
 

:-P

<img src="http://audiworld.downeymillgroup.com/VIR_April_2004/images/IMG_6329.jpg">

I think the Evo RS comes in really close to the base Z, although I do agree with you that the Z is a
 

fanstastic car.

its FWD, but "handles like a go kart " out of the box - mini cooper S.
 

also check the SRT-4, again FWD but does well out of teh box..