Driving simulators are essential for the development of vehicle systems, as they enable safe and efficient user engagement. Their validity determines the extent to which the results from empirical user studies obtained in driving simulators can be transferred to real-world driving situations. This study examines the gaze behavior of participants in a within-subject design, both in a real vehicle and in a driving simulator with a digital road replica. Using gaze-point plots and expert ratings, we compare fixation patterns across three road sections (City Drive, Rural Drive, Highway). The results visually indicate a moderate to high similarity in gaze distributions, suggesting consistent fixation patterns in both environments, with some notable exceptions on an individual level and generally highest matches in the City Drive. However, further statistical analyses are necessary to quantitatively confirm similarities and assess systematic differences.