Quote:
Originally Posted by DifferentPointofView
is the reason some wagons have a spoiler is to extent the roof-line to make it slope more downward before the air separates from the car, kinda like on a caliber?
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Exactly. Speaking only of roof extensions on hatchbacks/wagons: if the extension slopes slightly downward, it's a safe bet that it's an aerodynamic benefit. If it slopes upward relative to the roofline, it's Fast & Furious.