Marcia - 7:56 am on Apr 25, 2002 (gmt 0)

Ford would certainly need to use their own engine and transmission, but if factory installed air conditioning provided open security holes for vandals and thieves until and if the owner installed patches at some undetermined time in the future, if and when they became available, it might benefit consumers to opt for a less integrated system that wouldn't provide such easy access.

There's a difference between what's integral to functioning and could include little harmless additions to functionality, and what could be considered peripherals.