Plugin Systems for Hybrid Vehicles just inched a little closer to the mainstream. A123Systems has released the Hymotion L5 Plug-in Conversion Module which will convert your 2004 to 2008 Toyota Prius (sorry Classic owners) Hybrid into a plug-in hybrid capable of 100+mpg for 30-40 miles. CalCars.org has been a leader in this space and now A123 is making a plugin as simple as a trip to the dealership. The ost of the L5 is a reasonable $9995 which includes a standard 3 year warranty and installation at one of their Green CHIP (Certified Hymotion Installer Partner) locations. Currently this includes San Francisco, Los Aangeles, Seattle, Minneappolis and Washington DC. So it will be a while before this becomes available here in little old Knoxville, TN but I'm confident that it won't be long. (Well at least it will arrive in Atlanta or Nashville which is close enough.) I did a little price checking on Edmunds.com and currently a 2004 Prius is worth about $15000. Add another $10000 for this pack and you now have a 100+ MPG sedan for roughly $25000. Sign me up, when it gets here, of course.