Porsche Certificate (Zertificate) NLA Options

[JeffBowlsby]

I just learned that Porsche (Germany) has now limited their access for the Certificate (Zertificate) because the 914 is too old – nothing older than a 993 is now possible.

I wonder if this is related to the new system of PPS and CTC for classic Porsche here in the US?

[davep]

Yes, by "synchronized" I mean that the the two numbers are the same.
Back in 1965 when the 912 was introduced Karmann added their own number to the chassis; initially in the speaker recess in the dash, then after about 3500 cars it was stamped on the tunnel along the edge of the hole at the rear for linkage access. Back then the number was not synchronized with the VIN/Production #, but was in the same format. In 1968 there were 911 chassis built by Karmann, and the Karmann # again mimicked the VIN but was generally not identical. In 1969 the VIN was no longer the Production # and the format of the Production # and the Karmann # changed from that of the VIN. The Karmann # was the same series for both 911 & 912, but again they were not synchronized. 1970 brought the 914/4 & 914/6. For the 911 & 912 the Production # and the Karmann # became synchronized, but the 914/6 was not; about 2500 cars into 1970 914/6 MY the Production # and the Karmann # did become synchronized. In fact the Karmann # was not identical in format with the Production #; it was missing the year digit in 1970, but got the missing digit for 1971. The 914/4 got an entirely different Production # and Karmann # scheme, but they they were not synchronized until the 1974 model year. And, as we have discovered, not only has the Karmann # scheme varied a bit over the years (base xxy95zz and xxy90zz) but has been shared with some VW models for a period of time.