5/ ...50k miles the driveline started a vibration that seemed like a wheel bearing, but was in fact a central bearing between the front and rear driveshafts. Took me months to find the cause (a NVH phone app helped tremendously) and required removing the entire exhaust system and full length trays that run under the car. Fortunately, the entire exhaust system comes out as a unit, so the job was easier than it sounds.

Not long after that, the car developed an oil leak, which turned out...