Went with my daughter to look at a 2018 Jeep for $23k that she was interested in, it has 58k miles. Carfax showed it came from Virginia. Has had 6 different owners. Has had 2 clutches installed during its 58k mile life (very odd). As an auto shop owner/mechanic I was looking it over while my daughter talked to the salesman.
Check engine light didn't work, I also brought my scanner and they let me scan it (surprised actually), lots of codes hidden by inoperative check engine light, underneath it looked like pond scum all over the bottom, it's a Jeep and wasn't real surprised but it was obvious it hadn't been off road much if at all. They seemed surprised that the check engine light didn't work (they knew). She still drove it and realized they're cool to look at but not drive as a daily for her.
I'm in Alabama and see flood cars after floods happen sometimes, she didn't buy it and enjoyed watching Dad own used car salesman, I think she also figured out ole Dad can be how he needs to be when needed. Never let a used car salesman bully you into a car you don't need/want, they tried and figured out it wasn't happening.
Flood cars usually will end up at auctions in different states, beware and be aware.
I am assuming this was a Wrangler since you said it had a clutch.
I have a 2012 which is the very close to the same as an 18. It has the 3.6 Pentistar engine. This thing is notorious for throwing codes. It is a good motor but requires high maintenance. .The oil sensors go bad and throw a P06, P052, P052. It has a plastic oil coller located in the valley of the engine underneath the intake manifold which becomes brittle and leaks. You can replace this with an allumiun cooler which seems to last. The previous owner could have cleared the codes and it just hasn;t been driven on the highway long enough for them to re-appear. If you know how to work on these the codes are not a deal breaker but this is defintely a off road or beach day secondary vehical. If she wants something cool that will last, go get a 4runner that has the 4.0v6, throw a leveling kit lift and some 34" tires on it then drive it for 300k miles.
I drive mine through ponds and lakes and do not have any issues by keeping the water level under the door handles.
Yes, a Wrangler, 3.6L. Seemed to run decent just not a smooth ride, typical Jeep. Of course, daughter didn't hear when I told her it'll ride like a tank until she drove it. Dad wins again lol.