head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Accessible open-world racing where tuning knowledge rivals driving skill.

Optimization · Practiced Mastery
A PSP-born GTA prequel adding a business empire system to 1984 Vice City.
Forza Horizon 6 leans Execution (Practiced Mastery); Grand Theft Auto: Vice City Stories leans Optimization (Practiced Mastery).
Forza Horizon 6 leans a little harder on execution, though the gap is small.
Forza Horizon 6
Clean racing lines matter but assists soften the ceiling
Grand Theft Auto: Vice City Stories
Driving, aiming, and helicopter handling on a stick
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 6
Online rivals rarely demand deep adaptation
Grand Theft Auto: Vice City Stories
Mission enemies are scripted and predictable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Forza Horizon 6
Wheelspins and event variety add light randomness
Grand Theft Auto: Vice City Stories
Mostly fixed missions with light traffic randomness
Grand Theft Auto: Vice City Stories leans a little harder on optimization, though the gap is small.
Forza Horizon 6
Car tuning and upgrade picks decide leaderboard pace
Grand Theft Auto: Vice City Stories
Empire-building business system layers economy onto missions
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.