head to head
vs
Gran Turismo 5vsProject CARS 2
Gran Turismo 5 leans Execution (Practiced Mastery); Project CARS 2 leans Execution (Practiced Mastery).
Gran Turismo 5Project CARS 2
Axis by axis
Execution8 vs 9
Project CARS 2 leans harder on execution: Car-specific handling quirks demand high-precision inputs
Reads1 vs 2
Project CARS 2 leans harder on reads: Multiplayer racing involves moderate opponent anticipation
Variance1 vs 3
Project CARS 2 leans harder on variance: Dynamic weather and road conditions introduce real unknowns
Optimization7 vs 7
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.