I occasionally hear the turbo whistle, but to be honest, I don't hear that all that often. It also makes a ton of clicks, chirps, and assorted noises when you shut it off. I haven't noticed and other noises though - I pretty much hear the radio - usually really loud... I've actually known people who have had tires changed because they were too noisy. Even with cupped mud tires I would rarely hear anything but the radio. When I'm in traffic I'm pretty sure the vehicles beside me may be hearing my radio too. I'm from the "If it's too loud, you're too old generation."
On another note, I filled up the tank tonight and the trip meter was at 691.2 miles, 30.0 mpg, $48.00 to fill at $2.139/gal. After hand calculating it came out to 30.8 mpg, matching a previous tank for my best to date. On this tank the "best 50 mile mpg" went up to 34.5 mpg on the dash gizmo. The low fuel light had just come on but it still said I had 70 miles range on that tank. I think back to my 6.0 gas, which with a 24 gallon tank would safely get me about 250 miles a tank in the winter time. I could stretch that higher in the summer, but still not 300 miles. It's just crazy how far this will go on a 24 gallon tank, and It's been less than $50 to fill up every tank.
