they are both great cars, and I had the same choice to make, and I chose the g, because I liked the interior much more, and the fact that it had a back seat, because I am only 17 and like being able to bring a few friends with me where I go, and I am not a huge fan of the interior of the z, but if u like it, and only want to take one person with you, unless you put someone in the trunk, then go with the z, but overall I think the g is the better choice

 

hahahah jdm. ok dude ill help, if your under the age of 25, get a Z. over 25, get a m3. hope that helps.

 

ROFL!
i am under 25 but i bought a G
which category am i in?
how about you, since you own G instead of Z or M3

 

If you want a sunroof, get the G! Not available on Z.

03 Coupe; 5AT; Diamond Graphite/Graphite;
Premium & Performance Packs, with Chrome OEM Wheels;
Partly Debadged; Aluminum Pedals; Z-Tube K & N Filter;
Fujitsubo Exhaust with Y Pipe

 

I think the G is the better car, especially for practicality reasons.

If power is a primary concern both cars are making similar power and are also fairly similar down the strip. The Z is obviously going to have a "little" bit of a performance edge, but I think that the fact that the G35c is more luxurious, has a back seat, sunroof, etc... more than makes up for the "little" extra performance the Z has.

Get the G

 

Get the G for cheaper insurance, luxury feeling, very comfortable backseats, and plus its an Infiniti. Other wise get the Z. Just my .02