Originally Posted by Epacy
Tbone, would you say the battery was roughly 13in x 6in x 7in (length x width x height)? If you can recall.
I gotta say, looking at the second hi-rez pic, it looks like the battery could indeed be 1ft+.
The battery in the M3 was in the sedan so you should be able to approximate the size that way.
Unfortunately, I didn't take photograph a part of my body where I could have showed you how a foot-long was.
On the 1 series, the battery took up the entire lower part of the trunk.