I'm no expert in 190SL, but I looked into a book
and it says that _for Germany_ the original tyres
were 6.40-13 Sport (aka 6.40 S-13) with
5 K x 13 rims.
I have also read that at the end 2002 German tyremaker
Continental bgan to newly produce whitewall tyres
for the 190SL (and some other MBs), Continental
states them as 6.40 / 7.00 SR 13
Also somewhere 6.40/7.00 R 13 87S are mentioned.
And don't 185/80/13 fit??
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