Instead of scripted dialogue, the story is driven by your choices and accomplishments:
Experience the beginning of this journey and how the game sets the stage for your racing career: Forza 7 Career Mode - Part 1 - The Beginning YouTube• Sep 29, 2017 Forza Motorsport 7-CODEX
These special "chapters" break up the standard racing with unique challenges, such as bowling with a limousine or high-speed overtaking trials in iconic cars. Instead of scripted dialogue, the story is driven