Tonight I used tan shoe polish to repair a scuff on my 4/4 and it worked wonders it has repaired the scuff and returned the colour to the point that it can not be seen.
I also tried the same on a scuff to the drivers seat and the result was the same.
Once the colour had been returned I buffed it with a soft cloth and removed any remaining polish..
I'm very happy with the results and a very cheap fix.