Yeah I forgot the S after the F....thanks for pointing that out and for already having resolved it.
In case you have not heard of Norbert Franz, he is the founder and site manager
on Turbo Look Registry cars:
Turbolook-Register - Home
and he was the first person I contacted when the car came around,
Here is a copy of the email I got from Norbert on the 9th of February this year, and which was mostly included in the ebay listing:
Hi Jack !
Porsche gave an special M code for these Airvents only 1989 ! - before it was a special " z " order from "SONDERWUNSCH Programm" ( Special order department - today Porsche exclusive) you see that little "z" on the sticker !
Here is what is stored with the car :
TLR-Certificate : VIN: WP0ZZZ91ZFS101379
One of the rare factory - TURBO-LOOK !
already listed on Turbo-Look Register at Nr. '2263'!
Modelyear : 1985
Cartype : 911330 - 911 Carrera Coupe
Country : C00 - Country equipment Germany
Colorcode : A1A1 - black 1971-1993 - black Top
Paintcode : L700 - black 1971-1993
Colorcode inside : 87 - Special Leather interior - Color of choice
Carpets : 5FV - carpets black
Enginetype : 930,2 - 911 Carrera 3,2 l 231 HP - 170 KW - 63 E-K 00001>10000
Engine-Nr. :
Gearboxtype : 915,72 - 911 Carrera 5 gear - 74F-G 0001>10000
Gearbox-Nr. :
Code Discription
M197 Higher amperage battery
M220 Locking differential
M261 Passenger side mirror - electric - plain
I327 Radio Blaupunkt "Koeln"
I383 Sport seat - left
I387 Sport seat - right
M454 Automatic speed control
I491 TURBO-LOOK (930Performance body + chassis)
M559 Air conditioner
M567 Windshield green graduated tint
M650 Electric Sunroof
You see i have come pretty far meanwhile...
Best Norbert
so it is pretty much clear cut between the TURBO LOOK REGISTRY information,
and the Dealer invoice showing the work carried out at Porsche AG. that it is ,what it is.
Many thanks for the posts with actual valid content,
JP