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

Execution · Pure Mechanics
The N64 entry whose boost-or-survive health gamble layers routing decisions onto raw speed control.

Execution · Practiced Mastery
A multi-discipline motorsport sim spanning touring cars, open-wheelers and trucks with aggressive grid racing.
F-Zero X leans Execution (Pure Mechanics); TOCA Race Driver 3 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
Sixty-frame control of thirty machines at top speed
TOCA Race Driver 3
Consistent laps and racecraft across many disciplines.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero X
Rival AI is non-adaptive
TOCA Race Driver 3
AI rivals race aggressively but predictably.
TOCA Race Driver 3 leans a little harder on variance, though the gap is small.
F-Zero X
X Cup random tracks are a minor mode
TOCA Race Driver 3
Pack chaos and damage create incidents.
TOCA Race Driver 3 leans a little harder on optimization, though the gap is small.
F-Zero X
Boost-health tradeoffs and shortcuts reward routing
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.