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

Execution · Practiced Mastery
Soft-body physics sandbox driving and crashing.

Execution · Practiced Mastery
Plannable stealth routing punctuated by precise ballistic marksmanship.
BeamNG.drive leans Execution (Practiced Mastery); Sniper Elite III 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.
BeamNG.drive
Soft-body physics car control
Sniper Elite III
Ballistic long shots demand steady, compensated aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
BeamNG.drive
Mostly sandbox, no adaptive opponents
Sniper Elite III
Enemy AI follows mappable alert and search routines
BeamNG.drive leans a little harder on variance, though the gap is small.
BeamNG.drive
Emergent crash physics outcomes
Sniper Elite III
Patrol details and wind vary slightly per attempt
Sniper Elite III leans a little harder on optimization, though the gap is small.
BeamNG.drive
Vehicle tuning, scenario routing
Sniper Elite III
Open maps reward planned routes, sound masking and relocation
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.