Motability finance us a car based on 60k miles over 3 years and if we return it in good condition, we get a bonus. This is what they base their bottom line on. If we return the car with 5k on the clock in showroom condition, we don’t get extra rewards.
Motability keep a comprehensive record of each customer and every contact made with them. Standard for any large organisation. The only things relevant to them are any aspects that raise a flag ie excessively high mileage on more than one car, excessive insurance claims, or as Big Nanas mentioned, returning cars as skips.
Motobility have hundreds of thousands of cars on the fleet so work on formulae so most of us sail along unnoticed unless we raise a flag. Being better than they expect will not bring any extra reward!