The phrase "large windshield" refers to a big, wide window at the front of a car or any other vehicle that allows the driver to see the road and surroundings clearly. Full definition
The overly large windshield can be distracting until you get used to it. (autolist.com)
Mounds of driving data are projected onto the large windshield, all navigable with gesture controls, in both traditional formats as well as augmented reality situations in which the data on the screen responds and interacts with the outside environment. (automobilemag.com)
With large side windows, visibility is good no matter which row you're in, and forward views are good thanks to the Navigator's elevated driving position, large windshield and thin roof pillars. (cars.com)