While I love getting a new sports car, tank, humvee, or something I'll actually use on missions and such... I can't deny I had a lot of fun driving the new unlockable vehicle around.
Sadly I'm kinda stuck on the DLC. I've looked at a ton of videos and I can't find any other PC players having the issue, but when I do the second mission, "Identity Theft," I can't zoom in all the way and take Chris's picture. The first mission was really fun, surprisingly solid linear shoot out. Everything else is working much to my frustration, like oddly I think I'd be less annoyed if the state of the game didn't feel better, but now I'm getting my first weird progression halting bug since launch... Which is baffling.