head to head
Live for Speed asks more than F-Zero GX, and the gap is reads.

Execution · Pure Mechanics
One of the most mechanically demanding racers ever made, where mastering its physics tech is everything.

Execution · Pure Mechanics
A long-running hardcore racing simulator prized for its tire physics and online racing.
F-Zero GX leans Execution (Pure Mechanics); Live for Speed 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.
F-Zero GX
Snaking and frame-tight control at absurd speeds
Live for Speed
Hardcore sim handling rewards perfect car control
Live for Speed leans clearly harder on reads.
F-Zero GX
No adaptive opposition
Live for Speed
Online racecraft against human rivals
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
F-Zero GX
Fixed tracks, deterministic physics
Live for Speed
Deterministic physics, no weather lottery
Live for Speed leans a little harder on optimization, though the gap is small.
F-Zero GX
Machine settings and advanced technique routes are mappable
Live for Speed
Setups and racing lines converge to known optima
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.