head to head
Rock n' Roll Racing asks more than Grand Theft Auto V, and the gap is execution.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
An isometric combat racer set to metal covers, mixing vehicle upgrades with weaponized laps.
Grand Theft Auto V leans Execution (Practiced Mastery); Rock n' Roll Racing leans Execution (Practiced Mastery).
Rock n' Roll Racing leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Rock n' Roll Racing
Isometric cornering and weapon timing carry races.
Grand Theft Auto V leans a little harder on reads, though the gap is small.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Rock n' Roll Racing
Two-player duels add slight prediction; AI is scripted.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Some mission and lobby randomness.
Rock n' Roll Racing
Weapon exchanges and pickups create chaos.
Rock n' Roll Racing leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Rock n' Roll Racing
Upgrade purchases and planet-by-planet earnings are plannable.
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.