Awsome thread thanks to Ken and others.. Hopefully, these new downsized models (Prius C & Yaris Hybrid) will help bring over some of the great hacking talent, which is still stuck with the mods for 00 Insight over their forums.. early PHEV talk on them in this post here: http://priuschat.com/forums/prius-p...ew-bms-conversion-lithium-24.html#post1449405 --- That's a great idea! Perhaps asking for some preliminary non-intrusive CAN sniffing via basic Prius ODBII tools, wouldn't be over the top to add on that wish list?Thanks --- Actually, that Fiat 500 weights less (it's basically half the car), depends on motorization and options, say 960ish [kg], while Yaris Hybrid is around 1040kg and Prius c 1080kg. This is very agressive development (and strategic stance) by Toyota, just recall the craze of early-mid 2000s in the ICE land - the norm was gaining weight as there is no tomorrow across all segments. There are some lighter non-hybrids even sedans and 5dr hatchbacks in Europe/S. America/N.Africa/ME/Asia, something from Renault-Nissan comes to mind, but that would be hardly considered a car in the NA..