The last episode was quite good, and the car was more symbolic, it is was meant to show that Hurley's curse may have been broken. It was a small event in terms of what happened, but the impact it had on the characters was life changing, especially for Hurley and Charlie. This episode is what Lost is about, the people and their lives, not the secrets of the island, that is more of a side story. This episode showed me why I care much for Hurley, Charlie, and Sawyer (Got to love the Skeletor commment). Not only that but the episode was more light hearted (Got to love Roger's head falling off) than it has been and things could get much darker now.
Not sure about the nitpicks about how the dog got the arm, it is quite obvious the island does things in order to get the characters into a particular situation, it isn't "Another" secret especially if you've been watching it. How that guy died is not important, it is what came of his death and how that connects to the characters. Personally I would rather people not watch it if they wish to change the focus from the characters to the "answers".