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 · Pure Mechanics
The bigger, faster sequel doubling down on chaotic crash physics and stunt minigames.

Execution · Pure Mechanics
Kart drift control and track knowledge with item luck shaking up placements.
FlatOut 2 leans Execution (Pure Mechanics); SuperTuxKart leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
FlatOut 2
High-speed control amid wrecks and ragdolls
SuperTuxKart
Drift control and line holding decide races
SuperTuxKart leans a little harder on reads, though the gap is small.
FlatOut 2
No adaptive opposition worth modeling
SuperTuxKart
Human online races reward mild item mind-games
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
FlatOut 2
Crash physics and track debris vary every race
SuperTuxKart
Item box rolls shake up placements
FlatOut 2 leans a little harder on optimization, though the gap is small.
FlatOut 2
Track knowledge and car tuning settle into routine
SuperTuxKart
Track shortcuts and kart choice reward 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.