First, we had to ignore many of the factors that go into people liking a certain Jeep. A cool new infotainment system doesn’t say much about reliability - nor does a smooth drive. A new vehicle can have both of those and still break down easily.  The most important aspects of reliability are a lack of time in the repair shop, a lack of need to repair, and the cost of repairs. Our most reliable Jeep examples are those that have both shown major improvements in reliability and are well-known engines in the Jeep world.