Why leave Manhattan?
Until 1898, New York was little more than Manhattan and part of the Bronx. Consolidation stitched five boroughs into one city, but each kept its own accent, food and sense of itself. Most visitors spend their whole trip on one of them. That's a shame, because a lot of what makes New York New York happens across the bridges.
The catch is distance. The Bronx, Queens and the far side of Brooklyn are big, spread out and awkward to link by subway in a single day. A driving tour solves that. Your guide handles the route, the traffic and the parking, and you get the stories, the views and the stops worth getting out for. It's also the easiest way to sightsee if walking all day isn't for you.