No game perfectly combines persistent MMO progression (leveling, gear, open world) with simulation racing. Here's the current spectrum of hybrids.
| Want... | Play This |
|---|---|
| Open world + friends + pretty | Forza Horizon 5 |
| Serious sim + competition | iRacing |
| MMO first, racing side | FFXIV (Chocobo Racing) |
| Karting + progression + crossplay | KartRider: Drift |
| Variety (cars/planes/boats) + crew | The Crew Motorfest |
| True MMO racing (unproven) | Wait for TDU Solar Crown reviews |
The genre gap exists because racing physics + MMO scale = massive technical challenge. Forza Horizon 5 is the current sweet spot.