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
Street racer with stylized arcade handling.

Execution · Practiced Mastery
Aggressive circuit racing testing car control over memorisable tracks and braking points.
Need for Speed Unbound leans Execution (Practiced Mastery); Race Driver: Grid leans Execution (Practiced Mastery).
Race Driver: Grid leans a little harder on execution, though the gap is small.
Need for Speed Unbound
Arcade drift and grip handling
Race Driver: Grid
Aggressive wheel-to-wheel car control is the core demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed Unbound
Online lobbies, AI cops
Race Driver: Grid
Online racing adds light opponent positioning awareness
Need for Speed Unbound leans a little harder on variance, though the gap is small.
Need for Speed Unbound
Heat level and cop chase RNG
Race Driver: Grid
Damage outcomes add slight unpredictability to contact
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Need for Speed Unbound
Car build, betting strategy, garage growth
Race Driver: Grid
Braking points, lines and flashback management are learnable
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.