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
Keeping speed through destruction-racing chaos that punishes clean-lap plans.

Execution · Practiced Mastery
The handheld Mario Kart blending SNES-style handling with item-fueled races.
FlatOut: Ultimate Carnage leans Execution (Pure Mechanics); Mario Kart: Super Circuit 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: Ultimate Carnage
Holding racing lines through wrecks and ragdoll chaos tests hands
Mario Kart: Super Circuit
Snappy GBA handling rewards precise drift control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FlatOut: Ultimate Carnage
Rival drivers ram predictably, light multiplayer jockeying
Mario Kart: Super Circuit
Mostly AI races, light link-cable PvP
Mario Kart: Super Circuit leans a little harder on variance, though the gap is small.
FlatOut: Ultimate Carnage
Debris and pileups scramble any planned lap
Mario Kart: Super Circuit
Item boxes randomise every race
Mario Kart: Super Circuit leans a little harder on optimization, though the gap is small.
FlatOut: Ultimate Carnage
Car upgrades and track shortcuts are mappable
Mario Kart: Super Circuit
Time-trial lines and shortcut routes
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.