My Mercedes-Benz E-Class Estate was an ex-hire car - will this affect the resale value be affected when I return it at the end of the PCP deal?

I bought a Mercedes Benz E-class Estate from a main dealership that I have dealt with in the past. I was unaware that the car (10 months old, 14,000 miles) was an ex-hire car until the logbook arrived....

Can I swap run flat tyres for ordinary tyres on my Mercedes-Benz E-Class Estate?

I'm considering buying a Mercedes-Benz E-Class Estate 220 D AMG line which has run flat tyres on 19-inch rims as standard. Do I have to keep the run flats or can I replace them with ordinary tyres and...