How quick will the US version of the Tata Nano be?

I've heard that the home market Tata Nano takes about twenty seconds to go from 0 to 60 mph. Which, of course, is obviously quite slow. However, the US version of the car is apparently going to have an extra 25HP under the hood. It'll also weigh a little more, due to additional safety equipment. Anybody care to hazard a guess as to what sort of 0 to 60 time it'll be capable of?