360ci

Check with another dealer about the problems. The 'fluttering' may be curable via a new software download. Ask the dealer (search online first) about any TSB's - technical service bulletins for the '08 models. Side mirrors generally create wind noise. Usually it blends in with other ambient noise. If you have mirrors that fold are have powered glass, fold them inwards a notch or two and adjust the glass accordingly. If you have window vent visors you may be out of luck and will either have to remove the visors or put up with the noise.

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'99 Taurus 3.0L 2V Vulcan 145hp; 107,820m
'00 Durango R/T 360ci 300hp (modded); 90,651m
'06 Pontiac G6 GT 3.5L 220hp; 14,224m

Amsoil in all vehicles!