Is buying a 740i bmw 2017 with 90,000 miles a good idea?

The seller is smart to sell it while it still runs good.

The higher the number series of BMW's the more expensive to maintain. Stick with a 3 series, it's not as bad.

Thank you guys for the response. I would definitely take that into consideration taking to a bmw mechanic. I wouldn test drive it tommrow let’s see how everything goes. The owner takes good care of it he a private driver so he used it to pick up his clients. He only wants 30k cash and it’s letting me pay half And give him the other half later on the year. The car is still under warranty and he’s also going to see if bmw will let him extend the warranty.