AFAIK
Top Speed = 140 km/h max --- They had it up to 127km/h in the Solar Race.
15kwh Panasonic Li Battery --- would give up to ~500km per charge.
Weight ~300kg
two 98.3% Efficient CSIRO Wheel Motors peak of 10kw power
4m^2 of SunPower Solar cells
SunPower Cells are ~21.5% Efficient ... 1000W per m^2 light input
~860W Solar Array.
Plan to upgrade to 4 wheel motors for ~20kw peak
Link