Yes, each funder, vehicle and contract length can have completely different excess mileage charge. Long Term (24, 36 and 48 month contracts) will have a lower excess mileage charge than Short Term Leases (3, 6, 9 and 12 Month Car Leases). Cheaper deals are usually advertised with a lower annual mileage and it would be a huge mistake if you took one of these offers, knowing that you will go over the mileage allowance.