Some more pricing:

$2,203 - Challenge wheels
$15,362 - carbon ceramics
$1,418 - shields
$838 - red calipers
$930 - other color calipers / black standard
$408 - leather headliner
$2,041 - leather rear shelf / door moulding
$301 / $387 - regular/thick stitch in color of choice
$2,364 - power seats
$2,579 - daytona seats
$4,674 - racing seats
$645 - seat piping
$1,053 - spare wheel
$2,041 - runflat tires
$902 - tirepressure monitor (incl w/ runflats)
$892 - wiring kit w/ battery charger
$537 - fire extinguisher
$2,471 - radio nav system
$1,934 - hifi system w/ subwoofer
$967 - blue tooth