Reliability

https://www.autoblog.com/2017/08/14/range-rover-versus-mercedes-benz-suv-contest-vote/

According to the latest Vehicle Dependability Study, which rates vehicles once they've reached three years old — making it way more indicative of actual vehicular trouble than other JD Power studies — Land Rover is exactly average for reliability. But, according to studies by Consumer Reports and others, Mercedes owners have the second-most-expensive repair bills on average, behind only BMW. Land Rover, again, was exactly average among all makes.

More anecdotally, I've found that Range Rover issues tend to come and go. Check Engine lights, air suspension warnings and the like appear and disappear at random. Sure, a window may refuse to roll down for a short period, but it invariably starts working again in short order. It's so British it hurts. Mercedes, however ... if something breaks, it's broke for good. Call a tow truck, don't drive it, or else. Expect a big repair bill.