Mary Stuart Porsche

[jaudette3]

Today is the first time I have ever hear of this unusual car. I'm restoring signal lights for it;





Am I just late to the party? I understand that he name "Mary Stuart" refers to the wide body ducktail that resembles the collar worn by Mary Queen of Scots. Very, very cool.

Cheers,
JohnA

[911MRP]

The original so called Mary Stuart RSR is a well known car John no doubt lot of information here on RSR threads etc ...and unlike some you’ve got the more accepted royal house of Stuart spelling (not as sometimes spelled the Stewart derivation). Others will know more about the original car / modification to tail and royalty than I.

[StephenAcworth]

I think it is a 934 RSR:

https://subscribe.octane-magazine.co...res/porsche911



https://www.rovecars.com/rsr-prototype.html

Nice photo - is it the original or a tribute?

[Jim Breazeale]

I think it is a 934 RSR:
https://subscribe.octane-magazine.co...res/porsche911
Nice photo - is it the original or a tribute?

No, it's a RSR. Original or tribute? Depends who owns it. The owner of the real one used to live in the Napa Valley. He now lives in the hills of .............

[72targa]

A few more pics from back in the day..

[jaudette3]

I need to get out more. It’s a tribute.

[Jon B]

A few more pics from back in the day..

Front row seats at the Targa Florio :-)

Jon B.
Vista, CA

[StephenAcworth]

I bow to your superior knowledge, Jim!

No, it's a RSR. Original or tribute? Depends who owns it. The owner of the real one used to live in the Napa Valley. He now lives in the hills of .............

[stretch]

Those are the original Factory cars being prepared in Garage Teloche.

https://newsroom.porsche.com/en/chri...che-12759.html

[patrick911]

This topic is an interesting one if you're interested in the Martini RSRs and from post 10 & 16 onward there's a bit of info on the Mary Stuart tail.
In short, during the season they found they needed more downforce than the ducktail could provide, so whereas they had the cobbled on metal side plates at the Targa Florio, this improved to the what's now called the Mary Stuart tail/collar for the Le Mans race and later races that season.
Together with the improved downforce on the rear, they also added a lower bit to the front spoiler to reduce lift and the flares where wider to increase the already huge 11" rear wheels to what I believe were 13" centre lock wheels. It reduced top speed but provided added downforce for faster cornering.

The #46 car (9113600686 / R7) was modified together with R6 (9113600588) Targa Florio winning car (#47 at Le Mans) as can be seen in the Teloche garage picture above.
The R6 car was in that look for a long time (when Kitchak owned the car) and only recently has been restored back in the earlier Targa Florio winning look with the side skirts.

I know that Zuffenhaus was doing a replica, in the end even using carbon for the Mary Stuart tail, and no doubt there will be more copies around.