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 · Practiced Mastery
Open-world driving that tests car control with a tuning layer underneath.

Execution · Pure Mechanics
Consistent precision driving through touring-car packs on learnable circuits.
Forza Horizon leans Execution (Practiced Mastery); TOCA Championship Racing leans Execution (Pure Mechanics).
TOCA Championship Racing leans a little harder on execution, though the gap is small.
Forza Horizon
Driving skill with assists off carries every event
TOCA Championship Racing
Consistent lap precision through traffic decides every championship
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon
AI drivatars follow patterns; casual online adds little
TOCA Championship Racing
AI drivers follow fixed racing behaviour
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon
The open world is fixed and fully discoverable
TOCA Championship Racing
Pack collisions add mild chaos to race starts
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon
Car tuning and racing lines reward systematic study
TOCA Championship Racing
Track learning and racecraft lines reward systematic 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.