VVprotocolVV you don't just go for the MPG, you do it to get performance upgrade PLUS the increased economy :)
I had and Awesome Idea of aftermarket Hybrid kit and i found this...
http://www.sigmaautomotive.com/electrochar...ctrocharger.php but sadly not sold yet
48Volt * 600amperes = 28,8KW in low rpm (i am absolutely satisfied from the stock engine after 4500rpm and i remind you that i have an AT) plus increased MPG is more than anyone can ask :)
When it will come out i will be the first to try it :)
a secondary electric motor plus a supercapacitor would be an awesome mod that can achieve insane quarter mile times using energy from regenerative braking, i cannot understand why there isn't any aftermarket kits available...