Car is a 2005 Carrera S with a 10/2004 build date. Too a look at the motor number and it is M97/01SAT68675023.
From researching here, it appears the last 5 digits should be a low number for an early car?
It is actually a Launch car, although not the special edition in black with all the extras

2005 Porsche Carrera S Coupe
Division:
PCNA
Commission #:
540766


Prod Month:
10/2004
VIN:
WP0AB29985S741259
Price:
$86,660.00
Exterior:
Arctic Silver Metallic
Interior:
Black Standard Leather
Warranty Start:
December 18, 2004
Additional Equipment
407
19" Sport Design Wheel
446
Wheel Caps with Colored Crest
640
Sport Chrono Package Plus
670
Navigation for PCM
680
Bose High End Sound Package
692
Remote CD Changer (6 Disc)
762
PAG Code - Launch code
AN
Black Standard Leather
M6A
Black Mats - Porsche lettering
X1
Arctic Silver Metallic Top
XSC
Porsche Crest in Headrest

 

The "AT" in your engine number indicates that it is a replacement motor.

 

AT stands for "Austausch" which is German and means replacement.

CF