Electrip Motor Performance

Hi,
I have recently started considering a conversion, and was offered to use the following power system for a Toyota Sienna
http://www.azuredynamics.com/products/force-drive/documents/AC55_DMOC445ProductSheet.pdf
I realize the system is intended for trucks, but still, 60kW sounds just too low. Otherwise, why would the original car have a much larger engine?
I am not building a racing car, but I do not want it to be inferior compared to the original car acceleration wise. (I want top speed of 60mph)
Any thoughts about it?
Do I miss anything?
Thanks,
Ssophy