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
Soft-body physics sandbox driving and crashing.

Execution · Practiced Mastery
A kart racer with an adventure structure and three vehicle types, lighter on item chaos than its rivals.
BeamNG.drive leans Execution (Practiced Mastery); Diddy Kong Racing leans Execution (Practiced Mastery).
Diddy Kong Racing leans a little harder on execution, though the gap is small.
BeamNG.drive
Soft-body physics car control
Diddy Kong Racing
Drift boosts across car, hovercraft and plane demand precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
BeamNG.drive
Mostly sandbox, no adaptive opponents
Diddy Kong Racing
Multiplayer item duels add mild prediction; AI is scripted.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
BeamNG.drive
Emergent crash physics outcomes
Diddy Kong Racing
Balloon pickups and items inject moderate randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
BeamNG.drive
Vehicle tuning, scenario routing
Diddy Kong Racing
Vehicle choice, balloon upgrade routes and boss strategies converge.
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.