However, that said, this side-by-side seating XL1 is just VW's shot at mainstreaming their L1. Who needs mainstreaming when you're only building 100 units?
With a production run that small they should have appealed to the purists and stuck with the tandem seating of the L1 making it narrower throughout. A lower Cd is good, a lower CdA is better. That way if they also want to appeal to the mainstream all they need to do is widen it by 30% and make it a four seater. One car but two versions: a two seat tandem AND a four seat sedan.