head to head
EA Sports WRC asks more than Project CARS, and the gap is variance.

Execution · Pure Mechanics
A rally sim where split-second car control meets imperfect road information on every stage.

Execution · Practiced Mastery
Simulation driving precision underpinned by setup tuning and race strategy.
EA Sports WRC leans Execution (Pure Mechanics); Project CARS leans Execution (Practiced Mastery).
EA Sports WRC leans a little harder on execution, though the gap is small.
EA Sports WRC
Rally pace notes demand instant throttle and wheel response
Project CARS
Braking points and wheel control at the sim limit
Project CARS leans a little harder on reads, though the gap is small.
EA Sports WRC
Solo stage racing; no opponent to model
Project CARS
Online racecraft against humans adds light positional prediction
EA Sports WRC leans clearly harder on variance.
EA Sports WRC
Road surface changes and unseen cuts create real hidden unknowns
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.
EA Sports WRC
Car setup, tyre compound choice and stage routing are solvable
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.