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secondchance · 05-15-2009

One of magazine article when C4 was introduced quoted a GM engineer comment that wiper is not needed once the car reaches 55 mph due to windshield angle and aerodynamics. Rain water rolls up the shield and sheds itself.

Also, for those who don't drive in rain, it's mesmerizing to watch rain water rotate (right side and left side in opposite direction) on top of headlight housing due to vortex when the headlight is in up position.

05-15-2009	#8
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,723	Re: Throttle body top plate One of magazine article when C4 was introduced quoted a GM engineer comment that wiper is not needed once the car reaches 55 mph due to windshield angle and aerodynamics. Rain water rolls up the shield and sheds itself. Also, for those who don't drive in rain, it's mesmerizing to watch rain water rotate (right side and left side in opposite direction) on top of headlight housing due to vortex when the headlight is in up position.