head to head
vs
Grid 2vsRalliSport Challenge
Grid 2 leans Execution (Practiced Mastery); RalliSport Challenge leans Execution (Pure Mechanics).
Grid 2RalliSport Challenge
Axis by axis
Execution7 vs 8
RalliSport Challenge leans harder on execution: Car control on loose surfaces is the dominant test
Reads2 vs 1
Grid 2 leans harder on reads: Online wheel-to-wheel adds light positional prediction
Variance1 vs 1
Even - both lean on variance about the same.
Optimization5 vs 5
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.