The ideal simulator would let you start a drive in London and, without loading screens, drive to Istanbul. This requires of petabytes of 3D data. Google has this technology for its "Immersive View" (a short, cinematic fly-through), but not for real-time driving with physics. Microsoft Flight Simulator comes closest, but even it struggles with ground-level detail at high speeds.
This is used by driving schools. It combines the Google Street View API with 3D driving physics. While it isn't a free roam "simulator," it allows you to program a route (e.g., "Drive from 123 Main St to 456 Oak Ave"), and the software builds a 3D driving environment using Google's road data. It is hyper-realistic for specific routes but lacks the ability to go off-road. 3d Driving Simulator Google Earth
This is the most common question. The short answer is no. The ideal simulator would let you start a
The most popular iteration is a web-based tool—often referred to as the Google Maps Driving Simulator Microsoft Flight Simulator comes closest, but even it