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
Tests precise steering on cramped miniature tracks where one slip means falling off the table.

Execution · Pure Mechanics
Open-world racer where banking risky speedpoints against human cops drives the tension.
Micro Machines leans Execution (Pure Mechanics); Need for Speed: Rivals 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.
Micro Machines
Tiny cars on twisty tabletop tracks demand constant precise steering
Need for Speed: Rivals
Open-road control with pursuit tech timing
Micro Machines leans a little harder on reads, though the gap is small.
Micro Machines
Local multiplayer screen-edge duels reward predicting rivals' lines
Need for Speed: Rivals
AllDrive mixes human cops and racers in
Need for Speed: Rivals leans a little harder on variance, though the gap is small.
Micro Machines
Tracks are fixed; little randomness beyond AI bumping
Need for Speed: Rivals
Dynamic open-world encounters and weather
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Micro Machines
Learning each track's racing line and shortcuts pays off
Need for Speed: Rivals
Risk-versus-bank speedpoint economy
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.