head to head
Mario Kart 7 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 3DS Mario Kart that added gliders, underwater driving, and kart customisation.
Grand Theft Auto V leans Execution (Practiced Mastery); Mario Kart 7 leans Execution (Practiced Mastery).
Mario Kart 7 leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Mario Kart 7
Drift boosts, gliding, and underwater control
Mario Kart 7 leans a little harder on reads, though the gap is small.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Mario Kart 7
Online lobbies reward anticipating rivals' items
Mario Kart 7 leans clearly harder on variance.
Grand Theft Auto V
Some mission and lobby randomness.
Mario Kart 7
Item luck shapes every race
Mario Kart 7 leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Mario Kart 7
Kart customisation and track-specific 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.