The guide prices we provide give you a good idea what the car might be worth, depending on how you're buying or selling it. However, many factors can influence the price, including: Overall condition Cars of similar ages can have vastly different levels of wear and damage. Number of owners Typically, cars with more previous owners are worth less, especially if they lack documentation too. Optional extras Features like sat navs, leather seats and panoramic sunroofs can bump up the value. Colour Certain colours can be more desirable, depending on current trends and fashions. Service history Cars are worth more with a fully-documented service history. MOT Buyers often pay more for a long MOT. Modifications Additions like body kits, spoilers and so on can increase or decrease the value. Rarity of model Some cars are desirable because there aren't so many of them around. Extras included in the deal Such as extended warranties Things that can make the value go up Extra features Any optional extras that make a car stand out, for example a rear-facing camera to help with parking or an in-built sat nav and multimedia system. Desirable colour Some colours are more popular than others, so a car in a sought-after colour can be worth more. No damage Our car values are based on the car being in a good condition – so it could have some minor wear and tear like small stains or scratches. If a car has no damage at all and is in an excellent condition it’s likely be worth more than our guide price. Full service history A car with a complete record of all services can be worth more than one that has some gaps in the service history. Things that can make the value go down Significant wear and tear Our car values assume the car has some minor damage, like a small stain on the back seat or scratch on the bumper. If the damage is any more significant than this it’s likely to reduce the value of the car. Parts not working If anything needs fixing, for example a seat warmer or electric window doesn’t work, it will have a negative impact on the car’s value. Gaps in the service history or no current MOT Our valuations assume a car is in good working order. If there isn’t a current MOT or significant gaps in the records of services, it can reduce the value of a car. Lots of previous owners Usually, the fewer owners the more a car is worth. So if a car has been sold many times before it can reduce the value.