My next car will have to be a 4-seater, so I don't want my Miata to ever wear out! I'm tall at 6'-1", but I like this car and don't feel cramped inside. I don't drive long distances, though. The gearing tends to make for high engine revs when you're on the interstate - by my experience, in excess of 3700 rpm's at 65. Fit and finish is as good as you have come to expect in a Japanese car. Engine compartment is well laid out, making routine service easy. It won't win many stop light drag races, but over all a very high-quality product and a pleasure to drive.
Style. Perfect balance. Very predictable road manners. Very smooth gearbox. You can tell a lot of thought went into designing this car.
A 'freeway flyer' 6th gear. At 70, the car pulls 4000+ rpm's. At 65, it's still at over 3500 rpm's. Mazda has a 6-speed model, but the final drive in 6th is essentially still identical to the 5-speed box.