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

Execution · Practiced Mastery
Aggressive circuit racing testing car control over memorisable tracks and braking points.

Execution · Practiced Mastery
An arcade-style flight combat game of aerial dogfights and ground strikes.
Race Driver: Grid leans Execution (Practiced Mastery); Tom Clancy's H.A.W.X 2 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.
Race Driver: Grid
Aggressive wheel-to-wheel car control is the core demand
Tom Clancy's H.A.W.X 2
flight control precision under time pressure
Race Driver: Grid leans a little harder on reads, though the gap is small.
Race Driver: Grid
Online racing adds light opponent positioning awareness
Tom Clancy's H.A.W.X 2
scripted enemy squadrons, not adaptive
Tom Clancy's H.A.W.X 2 leans a little harder on variance, though the gap is small.
Race Driver: Grid
Damage outcomes add slight unpredictability to contact
Tom Clancy's H.A.W.X 2
some mission event randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Race Driver: Grid
Braking points, lines and flashback management are learnable
Tom Clancy's H.A.W.X 2
loadout and maneuver routing
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.