Plastic Header Bottle question

[jus4sho@xxxx]

Regarding the recall on the plastic header bottles: Can someone tell me why 
the plastic bottles weren't sufficient for the the Delorean? Was it just a 
defective design of the Delorean's specific bottle? How exactly did they 
fail? I ask because I've seen many other cars that utilize plastic bottles. 
(Presurized, like the D.) 

Part of my project will involve relocation and replacement of the bottle and 
I'd like a little background on the plastic bottle problem.

Thanks,
Steve 
VIN 2650 ("Project Delorean")
www.angelfire.com/md2/projectdelorean