Ok, giving luv to all Z's...Base, Sport, Touring, Both Sport/Touring, and Nismo.....here is the low down based off 2011 price:
Based of MSRP 2011 Nissan Z
Base: $30,610
Sport: $33,630 - Additional: $3,020
Sport/Touring: $38,300 - Additional: $8,310
Sport Package includes:
4 piston calipers
14inch rotors frnt
2 piston calipers
13.8 rotors rear
LSD Vicious
19" Rays
Chin Spoiler
Rear Spoiler
Synchro with Manual
Additional:
Splash Guards: $220
Carpeted Mats: $115
Carpeted Trunk: $95
Illuminated Kick Plates: $200
Airdynamics: $650
Nismo Brake Pads: $580
Nav package: $2,500
Rearview Mirror w/ Homelink: $785
Now if you purchased a Base and decided to upgrade your Z:
4 piston front brake kit will run you between $1,500 and up with rotors
19" Rays LMZ5 about $2300
Bridgestone-Brand Potenza RE050A about $1200 balanced/installed
Rear Splash Guard Kit: $78.95
Front Splash Guard Kit: $78.95
LSD: Roughly $1500
Z Mats Z Store: $134.95
Carbon Fiber Door Sill Z Store: $179.95
Trunk Carpet (Amazon.com) cheap and thin: $90.00
Spoiler no rear light: $109.00
No need to do the math :P DUH!!! just purchasing after market rims and tires equals the SPORT Package alone.......Not to mention the time and labor of installing parts............and of course the lovely WARRANTY
and higher resale value of OEM performance installed parts
All in all its best to just get the SPORT if you do not wish for NAV Touring Package.....cause even if you decide to upgrade you can easily make you money back on selling your OEM Parts to base Model Owners
who rather want OEM Parts versus aftermarket.....