head to head
vs
Grand PrixvsSonic Adventure DX: Director's Cut
Grand Prix leans Execution (Pure Mechanics); Sonic Adventure DX: Director's Cut leans Execution (Practiced Mastery).
Grand PrixSonic Adventure DX: Director's Cut
Axis by axis
Execution7 vs 6
Grand Prix leans harder on execution: Throttle control and weaving past cars is pure timing
Reads0 vs 0
Even - both lean on reads about the same.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization3 vs 4
Sonic Adventure DX: Director's Cut leans harder on optimization: Speedrun routing and A-rank paths are learnable systems
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.