Mary (Ellie's mom) reminded her of that Mustang, to lead Ellie to convince her dad left a "clue" for her in it & it was an intersect that need to be prepared for Chuck to use, but FIRST, Ellie had to use an "MRI" on it, before Devon could pass it on to Chuck. When Chuck opened it, the question was "1-11?", which ONLY Chuck new the answer to & it down-loaded the newer, up-graded Version of the Intersect!
The "Big Secret" about the abilities of this new and very up-graded Intersect Chuck now has will not be coming out until the NEW EPISODES air ~ January the 17th, I believe:) Why did Chuck's mom delete the OLD INTERSECT? To enable Chuck to Download the NEW ONE!!! If you think the older versions of CHUCK were exciting, just wait for the new ones:)