head to head
Neither is simply harder - they are hard in different places. Carmageddon TDR 2000 demands more execution; The Witcher 3: Wild Hunt demands more optimization.

Execution · Practiced Mastery
A chaotic vehicular-combat racer where destructive driving skill leads.

Optimization · Practiced Mastery
A narrative action RPG where build planning matters more than reflex execution.
Carmageddon TDR 2000 leans Execution (Practiced Mastery); The Witcher 3: Wild Hunt leans Optimization (Practiced Mastery).
Carmageddon TDR 2000 leans clearly harder on execution.
Carmageddon TDR 2000
vehicular combat driving and crash control
The Witcher 3: Wild Hunt
Combat timing matters but generous dodges forgive sloppy play.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Carmageddon TDR 2000
AI drivers barely adapt to player
The Witcher 3: Wild Hunt
Enemies use fixed AI behaviours; no adaptation.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Carmageddon TDR 2000
crash physics and pedestrian randomness
The Witcher 3: Wild Hunt
Loot rolls and minor combat variance only.
The Witcher 3: Wild Hunt leans clearly harder on optimization.
Carmageddon TDR 2000
vehicle upgrade and route optimization
The Witcher 3: Wild Hunt
Builds, alchemy, and quest routing reward planning.
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.