head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Pure Mechanics
Retro arcade racer channeling Top Gear's pure lane-weaving speed.

Execution · Pure Mechanics
Arcade driving that tests cornering execution over a small set of memorisable tracks.
Horizon Chase Turbo leans Execution (Pure Mechanics); Need for Speed II 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.
Horizon Chase Turbo
Weaving through traffic and nailing fuel pickups
Need for Speed II
Cornering and throttle control decide every race
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Rival cars run fixed rubber-band logic
Need for Speed II
AI racers follow rubber-banded scripts, not minds
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Minimal randomness in track layouts
Need for Speed II
Tracks are fixed; nothing meaningful is hidden
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Horizon Chase Turbo
Car stats and lap memorization help
Need for Speed II
Learning six tracks' racing lines and car choice
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.