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
Arcade car control across loose surfaces, weather and door-to-door packs.

Execution · Pure Mechanics
Tests precise steering on cramped miniature tracks where one slip means falling off the table.
Dirt 5 leans Execution (Pure Mechanics); Micro Machines 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.
Dirt 5
Sliding off-road cars on mixed surfaces is the whole test
Micro Machines
Tiny cars on twisty tabletop tracks demand constant precise steering
Micro Machines leans a little harder on reads, though the gap is small.
Dirt 5
Pack racing adds light wheel-to-wheel jockeying
Micro Machines
Local multiplayer screen-edge duels reward predicting rivals' lines
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt 5
Dynamic weather shifts grip unpredictably
Micro Machines
Tracks are fixed; little randomness beyond AI bumping
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dirt 5
Car class knowledge and line choice reward study
Micro Machines
Learning each track's racing line and shortcuts pays off
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.