From www.kbb.com

GT Premium - $24,390 invoice, $26,455 msrp

Automatic - $866 invoice, $995 msrp

Calif. Special pkg. - $1,649 invoice, $1895 msrp

Comfort group - $500 invoice, $575 msrp

Sport appearance pkg. - $300 invoice, $345 msrp

Interior upgrade pkg. - $400 invoice, $460 msrp

Premier trimmed color accent appliqué - $344 invoice, $395 msrp

Anti theft system - $283 invoice, $325 msrp

3.55 limited slip ratio axle - $87 invoice, $100 msrp

Chrome exhaust tips - $86 invoice, $125 msrp

Shaker 1000 - $1,127 invoice, $1,295 msrp

Sirius radio - $170 invoice, $195 msrp

Restraint system - $330 invoice, $380 msrp

Heated seats - $218 invoice, $250 msrp

Wheel cap pony spinners - $68 invoice, $85 msrp

Wheel locking kit - $44 invoice, $50 msrp

Wheels bright machined - $170 invoice, $195 msrp

Wheels premium aluminum - $718 invoice, $825 msrp

Wheels premium aluminum - $718 invoice, $825 msrp

 

You got a couple of the options mixed up

Comfort Group: $500 invoice - $575 msrp

These are separate options, the 1st is exterior, the 2nd interior

Sport Apperance Pkg: $300 / $345

Interior Upgrage Pkg: $400 / 460

 

Some how I screwed that up the first time. It is now corrected thanks for pointing that out...