For my Elite Dangerous crossover, I'd choose Forza Horizon. Imagine a universe where we have multiple SRV models, racing across different planets. Picture high-speed ship races through hills, canyon-like landscapes, or even weaving through a planetary ring - all wrapped in a Forza-style festival.
A planetary SRV race on a low-gravity world with rugged geography would require precise flight control, as pilots carefully manage airtime and navigate unique obstacles. Themed planetary bases could serve as race hubs where players land, interact, and prepare for upcoming races. Or an asteroid station on some planet ring with race circuits happening around it.
Race formats could go beyond traditional first-to-the-finish-line competitions, incorporating acrobatics-based point systems and demolition derbies. Prizes might range from Credits to Ships and Modules.
A political aspect could further integrate these races into Elite's Powerplay system, influencing galactic affairs by boosting tourism and economic growth in systems that embrace them. Beyond that, these events could serve as a proving ground for commanders, pushing their piloting skills to the limit - skills that might change the odds for certain high-risk missions.
Different powers/factions would host races reflecting their unique cultures - some favoring classic, structured competitions, while others embrace chaotic, high-stakes challenges