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 · Practiced Mastery
Vehicular mayhem testing car handling plus knowing when wrecking beats racing.

Execution · Practiced Mastery
Accessible car control amid demolition chaos rather than precision racing.
Carmageddon II: Carpocalypse Now leans Execution (Practiced Mastery); Dirt Showdown 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.
Carmageddon II: Carpocalypse Now
Perfect car control trivialises wrecking AI opponents and surviving
Dirt Showdown
Drifting, boosting and ramming need solid car control
Dirt Showdown leans a little harder on reads, though the gap is small.
Carmageddon II: Carpocalypse Now
AI drivers follow set behaviours, never modelling the player
Dirt Showdown
Demolition modes reward predicting human movement a little
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Carmageddon II: Carpocalypse Now
Pickup spawns and physics chaos add modest run-to-run noise
Dirt Showdown
Crash physics and pack chaos add randomness
Carmageddon II: Carpocalypse Now leans a little harder on optimization, though the gap is small.
Carmageddon II: Carpocalypse Now
Choosing wreck-versus-race strategy and upgrade economy is solvable
Dirt Showdown
Event types and boost routes are quickly learnable
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.