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
Hitting braking points and managing weight transfer lap after deterministic lap.
Forza Horizon leans Execution (Practiced Mastery); Need for Speed: Shift 2 Unleashed leans Execution (Pure Mechanics).
Need for Speed: Shift 2 Unleashed leans a little harder on execution, though the gap is small.
Forza Horizon
Driving skill with assists off carries every event
Need for Speed: Shift 2 Unleashed
Braking points and weight transfer control define lap times
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
Need for Speed: Shift 2 Unleashed
AI drivers follow racing lines, humans rarely adapt deeply
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
Need for Speed: Shift 2 Unleashed
Deterministic physics - the track never changes
Forza Horizon leans a little harder on optimization, though the gap is small.
Forza Horizon
Car tuning and racing lines reward systematic study
Need for Speed: Shift 2 Unleashed
Car setup tuning and line study underpin pace
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.