If you can get your hands on a low mileage example, do it. It is just too much fun to rev that engine and pass people! plausibility, sensor value too low Im a e92 335 FBO + 30/70 E85 platform. The gas mileage can be very good on an interstate I have managed 30 mpg driving carefully, but 21 to maybe, 24 is a more reasonable expectation. BMW Fault Codes DTC - X3 E34, E39, E46, E39, X5 E53, E60, E65, E70, E83 E90. I would rather listen to the exhaust, and you will too. Wind noise is not bad and the stereo is actually very good I just don't usually turn it on. There isn't much room for storage in the cockpit, nor the trunk, but I didn't buy it to haul more than a couple of overnight bags. The car really comes alive about 3500 rpm and feels like it will never stop accelerating, but it will because the brakes can handle the job. The gearbox takes some getting accustomed to first to second is notchy, but after a short while, you'll get the hang of it. the seats are firm, but you appreciate them because sitting up snugly against the back, you are fully supported and can feel exactly how the car is reacting to the road. On a twisty mountain road with the top down and the exhaust burbling behind, you really feel alive, and so does the car. It really requires good driving skills to get the best out of it, but if you have them, or take the time to acquire them, the car will reward you with performance that belies its age. This thing wants to play! It can do anything you can do, with the emphasis on you. But, get it out of town, push the sport button, and a whole new world opens up. It feels like an above average vehicle in normal mode and it is, you could drive it everyday in traffic and it would be fine. I like to drive something that you don't see on every corner. Before I bought this car, I spent four days working in Fort Smith, Arkansas.In that time I counted ten Porsche Boxsters, and close to that many 911s, but not even one regular Z4 let alone an M model. Its styling is different, and there are not very many out there, but that is what I want. This is by far the best sports car I have ever owned.