head to head
Mario Kart: Super Circuit 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
The handheld Mario Kart blending SNES-style handling with item-fueled races.
Grand Theft Auto V leans Execution (Practiced Mastery); Mario Kart: Super Circuit leans Execution (Practiced Mastery).
Mario Kart: Super Circuit leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Mario Kart: Super Circuit
Snappy GBA handling rewards precise drift control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Mario Kart: Super Circuit
Mostly AI races, light link-cable PvP
Mario Kart: Super Circuit leans clearly harder on variance.
Grand Theft Auto V
Some mission and lobby randomness.
Mario Kart: Super Circuit
Item boxes randomise every race
Mario Kart: Super Circuit leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Mario Kart: Super Circuit
Time-trial lines and shortcut routes
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.