When I'm hitting around 79-80, I'm hearing a weird whurring sound coming from the engine. When I'm under 79 or over 81, I don't hear the noise. Has anyone ever heard this? BTW the car only has 580+ miles on it.
Probably the turbo spulling up. Sounds like your not use to it yet. Try it in a gear and speed that gives you 3,000 RPM's...coast it with no gas or acceleration...then ease into it with more gas. You should find the same sound.