Computers are extremely powerful for data processing, but less adept at handling problems that involve subjective reasoning. People, on the other hand, are very good at these kinds of problems. We present a framework for adding subjective human experience to in-car navigation systems. People often rely on their own experience when planning trips, choosing the route that seemed fastest in the past, the one that was the prettiest, or the one recommended by a friend. This led us to develop a set of methods to help people record their personal driving history, add rich annotations, and share their data with friends and family, or even the broader community. Users can then learn from their own data, or harness the multiplicity of individual experiences to enjoy new routes. This approach can be used in conjunction with traditional in-car navigation systems.