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
A destruction-heavy racer where holding a line through flying debris is the core skill.

Execution · Practiced Mastery
An arcade-style flight combat game of aerial dogfights and ground strikes.
FlatOut leans Execution (Pure Mechanics); 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.
FlatOut
Car control through destructible chaos at speed
Tom Clancy's H.A.W.X 2
flight control precision under time pressure
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FlatOut
AI racers don't adapt; multiplayer reads are shallow
Tom Clancy's H.A.W.X 2
scripted enemy squadrons, not adaptive
FlatOut leans a little harder on variance, though the gap is small.
FlatOut
Physics debris and crash chaos inject randomness
Tom Clancy's H.A.W.X 2
some mission event randomness
Tom Clancy's H.A.W.X 2 leans a little harder on optimization, though the gap is small.
FlatOut
Lines, upgrades, and nitro 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.