head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

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

Execution · Practiced Mastery
A multi-discipline motorsport sim spanning touring cars, open-wheelers and trucks with aggressive grid racing.
Dirt Rally leans Execution (Pure Mechanics); TOCA Race Driver 3 leans Execution (Practiced Mastery).
Dirt Rally leans a little harder on execution, though the gap is small.
Dirt Rally
Unforgiving car control on loose surfaces is the entire test
TOCA Race Driver 3
Consistent laps and racecraft across many disciplines.
TOCA Race Driver 3 leans a little harder on reads, though the gap is small.
Dirt Rally
Solo time trials against the clock, no adaptive rival
TOCA Race Driver 3
AI rivals race aggressively but predictably.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt Rally
Weather and surface degradation vary between stages
TOCA Race Driver 3
Pack chaos and damage create incidents.
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
TOCA Race Driver 3
Setups, braking points and discipline-specific lines reward study.
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.