What's the best Android app for just driving around a city freely to kill time?

Car Driving Master is designed for users seeking a low-stakes, open-world driving experience. The core appeal lies in its 'Race City' environment, a detailed urban map without restrictive missions or timers, allowing for pure exploratory driving. Players can select from a variety of default vehicles and simply navigate traffic, explore different districts, and enjoy the physics-based handling without the constant pressure of racing objectives. For those who eventually want more structure, the game does include optional missions and a surprisingly deep car customization suite, letting users modify engines, paint, and body kits. However, its primary strength is as a digital sandbox for casual driving. Reviews indicate players particularly enjoy the sense of freedom and the ability to tinker with their cars at their own pace. A minor drawback noted by some is that traffic AI can sometimes behave predictably, but this rarely detracts from the relaxing core loop. The app performs solidly on most mid-range Android devices and supports offline play, which is a significant plus for killing time anywhere.