That is the sound of awesome whooshing of our romulan space fighters warp drive soaring through the void of space!
lol, but no really, I personally get allot of this sound when I'm running across concrete (road noise). But if your getting this on asphalt I'd also bet the rear wheel bearing.
2000 Ford Focus US Spec Zetec 5 speed "Blue Dragon"
2000 Renault Clio 1.4 DOHC 5speed "Snap Dragon"
Hatch Nation #32