Their exhaust is terribly hot, and lots of it also.
M-1A Abrams tank drivers used to take care of tailgating BMW’s on the Autobahn by gunning the engine. Exhaust would peel the paint off the Beemer. Melt some of the plastic too!
Couldn’t the exhaust be put through a cooling radiator of some sort?
http://www.freerepublic.com/focus/f-chat/1731002/posts
It’s way off at one end of the scale & isn’t a hybrid — but it sounds like it would be a fun drive. The noise sounds like an even worse problem than the exhaust.