It looks like the cd should be a lot better than 0.18
Basjoos did better than that with rippled sheet metal (no aerocivic disrespect but its like the time and $ money difference between weatherspotter and the zombieinsight )
I expected more like .16
Maybe the front end is to blunt ?
The mirrors aren't bad and VW usually has a fair belly pan.
I wish they kept the 1L's rims though. They were nice and smooth.
I miss the tandem seating, like a motorcycle, but you don't get wet when it rains.