I don't know where people are getting their information. The best way to tell what you can expect in depreciation (the real giant and hidden cost of owning a car) is already on the internet IF you know where to look.
I suggest caredge to start. I have found their numbers to be pretty spot on through the years. Generally speaking certain categories and brands of vehicles will depreciate faster than others. Of course how you have treated the car, mileage, color, etc.. are always big factors that will vary with each owner. and vehicle.
What I can say is that luxury brands tend to depreciate faster than mainline vehicles. Traditionally there are certain brands that tend to be costly to own such as anything made by FCA (Chrysler, Ram, etc) and German vehicles in general. They tend to have more issues and need costly repairs after just a few years. Savvy buyers already know this and tend to shy away. With less demand for the used product the depreciation is faster. The opposite holds true for the Asian brands, specifically the Toyota brand has been the most reliable over time and that is a huge factor in them holding their value better than others. Trucks and SUV's are in demand these days so hold their value better than sedans or coupes. Check Edmunds "True cost to own" to see how a specific vehicle will depreciate if you want to know more.
Unfortunately the Korean brands have had a hard time raising their "street cred". For years Hyundai offered vehicles that were on the low end of things from price to quality. They were hard to sell used and promised the next owner lots of expensive headaches. At the corporate level they decided to raise the bar significantly about 2005 with the introduction of the Tucson. Since then they have produced some really good and some not so good vehicles but the quality in general has been going up over time. And resale values have slowly increased accordingly.
When they introduced the Genesis brand several years ago it was still wore the Hyundai
badge and was sold through the Hyundai dealer network. Maybe that was a mistake because in has confused the average consumer.
One must still purchase at a Hyundai dealer even though clearly Hyundai has taken the Genesis to a much higher level and by action is clearly wanting a seat at the luxury table. With the deep pockets of Hyundai I believe they will eventually succeed, but in the meantime the public does not recognize the quality and value of the Genesis brand.
Until Hyundai solves the problem with their existing dealers and takes the big step to establish separate brick and mortar stores just for the Genesis brand resale values will suffer. Again it is about public perception. The old supply and demand equation. Right now the resale market for Genesis is tiny. Few of the most recent models will be on the market for several more years. Maybe by then the demand will have grown to the point that resale values will begin to edge up. In the meantime I would only buy a Genesis if I fully intended to keep the vehicle for more than 7 years - or buy a used one if you can find it. By that time the depreciation factor will be much less of an issue and general condition will count more.
