In 197o, myself my school friend Khalid Elahi and his Lahore based friend Qaiser Butt, took the crazy crusade of driving down in Khalid's MAZDA-626 from Lahore to London !
SIX times tyre punctures---two times chage of tyre at someplace near Tehran and Istanbul and the near HOLD UP at Koh-e-Taftaan initially--were all exciting. We could have taken Kabul route but we preferred Quetta to Koh-e-Taftaan and so forth on. Took us around 7.5 days to reach ending at Dover from Paris via Ferry!
Can you please confirm that did you trip take 7.5 days from Lahore to London? :)