Here is a fun article about the boys at Popular Mechanics installing a batter bank and electronic motors in their new
DODGE CHALLENGER R/T.
Right now the car is capable of 99 miles per gallon because they need to idle the Hemi to keep lubricants moving throughout the power train.  They hope to overcome this with electric motors then it will become a true Eco muscle machine capable of switching over to the Hemi and speed of 0-60 in 4 seconds.  For some gear heads out there this may be just what the doctor ordered.

Check out the article hear

http://media.origin.popularmechanics.com/documents/ecomuscle/makeover1.html