Well suprisingly i really like Crysis 2, however this is something i found to be a bit of a letdown.

I found that one can collect vehicle keys in the game throughout the levels, and at first i was under the impression that it would actually let you drive the vehicles you got the keys for.
But imagine my disappointment when i found that i couldn't.... >.<

So is there actually a point to collecting Vehicle Keys? Or is it just some pointless trinket you collect for the sake of collecting?
If so, then its kinda sad that CryTek didn't have the imagination to actually let one drive the vehicles one unlocks.