We integrate a set of game-theoretic driver decision-making models with the high-fidelity car driving simulator The Open Racing Car Simulator (TORCS). The game-theoretic driver models simulate the interactive decision making processes of the drivers and TORCS simulates vehicle dynamics in multi-vehicle highway traffic scenarios. We use the integrated simulator to collect human driving data and then use these data to validate and re-calibrate our driver and traffic models. Such an integrated simulator can be used in the development, verification and validation of automated driving functions.