Help needed! Identifying the type of famous Mk1 and its features

[MiNiKiN]

Gentlemen,
your crowd intelligence and experience is required and appreciated.
I had these two photos and only recently I was able to put the car against a certain racer named Fritz Baumgartner. And those who already sussed out my obsession will probably know that this is about the "Lauda car". I am trying to figure out if this was the first "edition" of said car or a predecessor.

• 1st: Could you help and identify what this car initially was (simple 850, 997, 998 Cooper or not, 1071S maybe,...), please look at as many features and please name them.
• 2nd: any modifications and oddities you spot (like the carbs, what size?) and name them.

I used AI to get the piccies a bit better, but I am afraid this is as good as it gets. Photos are pre 1967.

Baumgartner_#1.jpg

enlarge_0000371498_Do1967__80.jpg

Many thanks
Marcus

[rnp68]

The carbs look like twin 1 3/4"

Ray

[minibitz]

Race numbers painted by Mr Blobby?

[AndyPen]

So difficult to guess, but the servo pipes suggest post mid 64, and the position of the control box suggests that too?

[tintoptom]

Assuming the shell is original- it’s not a full skirt, so must be after that change point (can’t remember when that was, but most folks on here will ).

[tintoptom]

… no safety bosses on the door handles either, so that gives the latest date it could be

[tintoptom]

Looks like a Morris Cooper grille to me as well

[tintoptom]

Looks like an 11 stud head? The heater tap would also give a clue to date.

(I’ll stop bombarding this threat now )

[AndyPen]

Skirt change point is around May June '64, but if that is the the control box in view it suggests later as it moved from the crossmember in Oct / November 64 with hydro??? Most likely a 1275 then??

[hanlminiman]

Race numbers painted by Mr Blobby?

Plymsoll whitener was regularly used on club events in the 1960s and the persons applying the numbers were not sign writers.