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
Accessible kart racing where merging cars trades driving for turret chaos.

Execution · Practiced Mastery
MMO street racing testing driving lines plus grindable car-build advantage.
Crash Tag Team Racing leans Execution (Practiced Mastery); Need for Speed: World leans Execution (Practiced Mastery).
Need for Speed: World leans a little harder on execution, though the gap is small.
Crash Tag Team Racing
Driving and turret aim ask moderate kid-friendly hands
Need for Speed: World
Racing lines, drift control and pursuit evasion reward clean hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Tag Team Racing
Clashing with humans adds slight positional guessing
Need for Speed: World
Human rivals in lobbies add slight positional prediction
Crash Tag Team Racing leans a little harder on variance, though the gap is small.
Crash Tag Team Racing
Item luck and clash chaos shake up races
Need for Speed: World
Pursuit spawns and lobby skill add mild noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Crash Tag Team Racing
Track routes and car upgrades are quickly learnable
Need for Speed: World
Car builds, powerups and route knowledge compound advantage
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.