For example, a four-year-old car
might be expected to have about 48 000 miles on the clock. If the actual
mileage is 50 000 miles then the asking price/trade in
value will need to be reduced
accordingly. Used car trade in value guides generally offer a
mileage adjusted trade in value table.
Further, this used car trade in value table may estimate for prestigious cars a mileage adjustment factor of £100 for
each additional 1000 miles, or for a compact car, a mileage adjustment of £50
for each 1000 miles.
See also,
High Mileage Tradein Cars - should I buy one?.