The concern isn't a current model-year vehicle, it's the replacement time of cars (and appliances in general) vs technology. Presumably, a 2015 car should be good for at least 10-15 years. How will your car's navigation system stack up in 2020 (just 5 years away)? Will it still be your go-to choice? I think the claim is that mobile technology improves much faster than the replacement/upgrade cycle for cars, so a car's internal navigation becomes amusingly obsolete much sooner than the car itself.