Yup, that bit's cool with me. The scary bit is my (possibly wrong?) feeling that the WRC-type cars need much longer to service than the ancient cars. You'll be OK in your Escort, but what about us Fiesta drivers?
I guess I should do some testing with my beloved Alpine and see if I'm wrong...
You are most likely wrong, though it is slightly easier to make mistakes in the faster cars. I usually damage my engine and gearbox much more in the Escort than the newer cars.