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 · Pure Mechanics
Throttle and counter-steer precision on loose surfaces against the clock.

Execution · Pure Mechanics
High-speed anti-gravity handling over memorised racing lines with light weapon chaos.
Colin McRae: Dirt leans Execution (Pure Mechanics); Wipeout 2048 leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae: Dirt
Car control on loose surfaces is the entire test
Wipeout 2048
Pixel-perfect anti-grav handling at speed is the core test
Wipeout 2048 leans a little harder on reads, though the gap is small.
Colin McRae: Dirt
Racing the clock or AI lines, nothing adapts
Wipeout 2048
Online racers add light weapon-timing prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Colin McRae: Dirt
Surface grip and damage add mild run noise
Wipeout 2048
Weapon pad pickups inject some racing randomness
Wipeout 2048 leans a little harder on optimization, though the gap is small.
Colin McRae: Dirt
Setup tuning and corner-line knowledge underpin pace
Wipeout 2048
Track lines, barrel-roll spots and ship choice are 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.