We love getting your questions, by email or on the blog. Dan writes: How much would a drive unit sized for a compact car cost? I’m [also] curious if there is a difference in the way the car drives? NRG Dynamix isn’t ready to share list price at this time. But the fuel savings for a taxi running one shift in New York over two years would be enough to pay for the whole car – NRG Drive hydraulic Drop ‘N Hybrid and all. As...