Charging takes 17 minutes on average to ~28 kWh. This is ~80% of the charging capacity of the current e-Golf [e-Golf: Power consumption in kWh/100 km: 14.1 to 13.2 (combined), CO2 emissions in g/km: 0 (combined), efficiency class: A+]. Both the car and charging station are vaporware at the moment.
Volkswagen Offers First Look at Mobile Charging Station