head to head
vs
Dirt 3vsGrand Prix 2
Dirt 3 leans Execution (Practiced Mastery); Grand Prix 2 leans Optimization (Practiced Mastery).
Dirt 3Grand Prix 2
Axis by axis
Execution8 vs 7
Dirt 3 leans harder on execution: Car control on loose surfaces is a high physical ceiling
Reads0 vs 0
Even - both lean on reads about the same.
Variance2 vs 1
Dirt 3 leans harder on variance: Surface conditions and minor physics noise per run
Optimization6 vs 8
Grand Prix 2 leans harder on optimization: Car setup tuning - gears, springs, ride height - decides lap times
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.