head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Cornering execution over memorisable circuits, with light prediction in wheel-to-wheel multiplayer.

Execution · Practiced Mastery
Open-world racing MMO spanning a condensed United States.
Grid 2 leans Execution (Practiced Mastery); The Crew leans Execution (Practiced Mastery).
Grid 2 leans a little harder on execution, though the gap is small.
Grid 2
Car control through corners is the entire moment-to-moment test
The Crew
car control across long cross-country races
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grid 2
Online wheel-to-wheel adds light positional prediction
The Crew
PvP races involve mild positional mind games
The Crew leans a little harder on variance, though the gap is small.
Grid 2
Tracks are fixed and fully visible
The Crew
traffic and open-world events add noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grid 2
Racing lines, braking points and car selection are studyable
The Crew
car specs and route choice are tunable
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.