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

Execution · Practiced Mastery
White-knuckle chase driving and route memorisation through punishing scripted missions.

Execution · Practiced Mastery
Car-control execution through scripted chase missions and learned city routes.
Driv3r leans Execution (Practiced Mastery); Driver: Parallel Lines leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Driv3r
Unforgiving chase driving and clunky on-foot shooting demand control
Driver: Parallel Lines
Chase driving and tight escapes demand solid car control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Driv3r
Pursuers follow fixed AI logic
Driver: Parallel Lines
Police AI follows predictable scripted pursuit logic
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Driv3r
Traffic adds noise to chases, missions are scripted
Driver: Parallel Lines
Traffic adds light noise to chases
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Driv3r
Memorising city routes and mission scripts carries completion
Driver: Parallel Lines
Route knowledge and car upgrades smooth 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.