head to head
Dirt Rally asks more than TrackMania 2: Stadium, and the gap is variance.

Execution · Pure Mechanics
Punishing rally car control at the limit, supported by setup and stage knowledge.

Execution · Pure Mechanics
Grinding deterministic tracks for the perfect line and the flawless run.
Dirt Rally leans Execution (Pure Mechanics); TrackMania 2: Stadium leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Rally
Unforgiving car control on loose surfaces is the entire test
TrackMania 2: Stadium
Perfect inputs ARE the game - hundredths decide leaderboards
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Rally
Solo time trials against the clock, no adaptive rival
TrackMania 2: Stadium
Ghost racing - opponents never interact with your run
Dirt Rally leans clearly harder on variance.
Dirt Rally
Weather and surface degradation vary between stages
TrackMania 2: Stadium
Fully deterministic physics, identical track every attempt
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Rally
Pacenote interpretation, setup tuning and stage memorisation
TrackMania 2: Stadium
Finding the optimal racing line is half the hunt
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.