The king of green car press releases has issued another announcement, this time talking about the availability of a Toyota Prius and Highlander plug-in conversion kit. In collaboration with Hybrid Plus, Zap's kit will convert hybrid Priuses and Highlanders into what tests predict will be 120 MPGe (city) and 90 MPGe (highway) vehicles. Depending on the vehicle, the kits cost between $24,000 and $36,000, and Zap says turnaround time is about four weeks. The press release doesn't get into great details, but it sounds like you need to bring your Prius/Highlander to Boulder to have Hybrid Plus do the work. You might also be able to go to a local Zap dealer to have the work done (UPDATE: Zap says that Zap dealers will be able to do the conversions).
While electric car dealerships seen a little more business in the last few years, as a recent New York Times article points out, it's still hard to get by selling nothing but electric cars. Many EV dealers already sell other types of vehicles and, as Hybrids Plus CEO Carl Lawrence says, electric car companies and hybrid conversion companies collaborating is "natural."