What a Car's Worth

Four things explain almost all of it: the brand, the age, the mileage and the engine size. Together they account for 94% of the difference in price from one car to the next, so very little is left to luck or haggling.

For a dealer this means a fair price can be worked out from a car's basic details, rather than judged by feel. The same logic values a trade-in, sets a forecourt price, and spots a car that is priced wrongly.

Use these few details as the backbone of every pricing decision, and treat large gaps from the expected price as a signal to look closer.

Mileage steadily pulls the price down. Every 10,000 km on the odometer lowers the value by about RM 1,785, holding everything else equal. A car with 100,000 km is worth roughly RM 17,850 less than the same car barely driven.

This makes the odometer one of the clearest levers in a negotiation. A high-mileage car is not simply less desirable, it has a measurable discount attached.

Adjust the asking or trade-in price against a typical car's mileage, rather than treating all examples of a model the same.

Age works the same way. Each extra year lowers the price by about RM 2,649, on top of whatever the mileage does. A five-year-old car carries roughly RM 13,245 of age-related drop built in.

Age and mileage are separate discounts that stack, so an old car with high mileage is marked down twice. This is why a low-mileage older car and a high-mileage newer one can land at similar prices.

Price age and mileage as two separate deductions, and watch for cars where only one is bad, they are often the better buys and sells.

Brand is the single biggest factor. Holding age and mileage equal, a BMW is worth roughly RM 27,898 to RM 41,938 more than a comparable mass-market car, with Perodua and Proton the most affordable and Toyota and Honda in between.

So two cars of the same age and mileage can be worth tens of thousands apart purely on the badge. Brand is not a soft preference here, it is the largest number in the pricing.

Anchor each car to its brand first, then adjust for age and mileage, rather than pricing across brands on mileage alone.

Yes. Tested on cars held back from the analysis, the estimated price came within about 9.0% of the actual selling price, with no consistent over or under-valuing. For a typical car that is an error of a couple of thousand ringgit, not tens of thousands.

That is accurate enough to use as a working valuation: a quick, defensible number for a trade-in offer or a forecourt sticker, backed by the data rather than gut feel.

Use the estimate as the starting price and negotiate around it, treating it as a reliable anchor rather than a guess.

The method prices any car from its details. A budget example, an eight-year-old Perodua with 130,000 km, comes out near RM 21,712; a mid example, a five-year-old Honda with 60,000 km, near RM 65,493; and a premium example, a three-year-old BMW with 30,000 km, near RM 110,988.

Each price is built the same way: start from the brand, then subtract for age, mileage and owners, and add for a larger engine. The result is a consistent, explainable number for every car on the lot.

Run each car through the same factors so the whole forecourt is priced on one consistent basis, not case by case.