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
A gleefully violent 1997 Build-engine shooter starring undead gunslinger Caleb.

Execution · Practiced Mastery
Simulation driving precision underpinned by setup tuning and race strategy.
Blood leans Execution (Practiced Mastery); Project CARS leans Execution (Practiced Mastery).
Project CARS leans a little harder on execution, though the gap is small.
Blood
Fast Build-engine combat demands aim and dodging
Project CARS
Braking points and wheel control at the sim limit
Project CARS leans a little harder on reads, though the gap is small.
Blood
Niche multiplayer only; campaign enemies are scripted
Project CARS
Online racecraft against humans adds light positional prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Some enemy spawn and hitscan unpredictability
Project CARS
Dynamic weather injects some session randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blood
Secret hunting, weapon economy, route knowledge
Project CARS
Setup tuning and pit strategy reward deep study
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.