Hello again

I went to see a manual C4S today with 38000 miles on the clock.

There were a number of chips on the paintwork and some kerbing of the 18 inch alloys.The seller says these can be rectified.There is also a noticeable chip in the windscreen which can be felt with your fingernail.Is this repairable?
The interior is clean apart from what appears to be a cigarette burn on the carpet just by the seat controls......I am assuming cigarette.
The rear offside brake light is broken..............unsure how???
I have read a number of articles on the oil/water mix problem.What do you make of this ??See picture.The oil on the dipstick looked ok.Hope somebody will be able to help.