I bought a very low milage 350 2012 last May that had 18k miles. This car came out of Texas and for the most part was very well taken care of. Honestly these cars (IMOP) are no different then mostly anything thing else. The only real exception is the roof. I'd make sure it works smoothly and the seals are in good shape. Outside of that I'd be checking things like I would do on any car, Engine runs and sounds good, transmission shifts well, no corrosion underneath, AC works, all controls work, etc. My car has been fantastic . I did put new tires and replaced the brake pads and rotors with more high performance ones. I can tell you that the V6 is so smooth at idle that I think the motor shuts off. I plan on keeping this a very long time. We've done two trips in it which were a blast, one in to southern AZ , The Devils Highway and the other to the North Rim of the Grand Canyon and the car was comfortable and a blast to drive. If I had one negative it would be the transmission. I so wish it was a dual clutch one instead of an automatic. In manual its simply not as responsive as a DCT. Outside of that its the perfect car for me at this time of my life.