Its not just the front which gave the B5passat its slippery Cd. the roof line and underfloor were key parts to. the 3rd gen golf convertible did get a 4th gen face lift improving its frontal 'a bit' but not hugely
I know some other OEMs do make big ground on aero when they facelift a car.
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good things come to those who wait, sh*t turns up pretty much instantly
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