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 twitchy miniature car control and track memory amid party-weapon chaos.

Execution · Pure Mechanics
Open-world racer where banking risky speedpoints against human cops drives the tension.
Micro Machines V3 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 V3
Tiny cars on twisty tabletops punish every slip
Need for Speed: Rivals
Open-road control with pursuit tech timing
Micro Machines V3 leans a little harder on reads, though the gap is small.
Micro Machines V3
Couch rivals can be baited with weapons and nudges
Need for Speed: Rivals
AllDrive mixes human cops and racers in
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Micro Machines V3
Pickup spawns and chaos shuffle close races
Need for Speed: Rivals
Dynamic open-world encounters and weather
Need for Speed: Rivals leans a little harder on optimization, though the gap is small.
Micro Machines V3
Track memorisation and shortcut lines pay 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.