Quote:
Originally Posted by NHB
It seems that it's possible to get good results without long boat tail. Just look at cars like Audi A2 and Mercedes new A-/B-klasse. Many sedans and coupes like Mercedes E-klasse have low Cd values without boat tails.
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They have good Cd values when
compared to other cars, but it's simply not good enough to make much of a difference regarding fuel economy.
We're still hovering around the 0.3 mark, with the better vehicles around 0.25 - and have been for many years, the A2 is old.
Reduzierung des Luftwiderstandes - volle Wirkung erst mit regenerativem Bremsen (In German, by W-H Hucho)
To make a real difference, we need to get to 0.20 - and below.