head to head
vs
Grid 2vsTest Drive 6
Grid 2 leans Execution (Practiced Mastery); Test Drive 6 leans Execution (Pure Mechanics).
Grid 2Test Drive 6
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
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 4
Grid 2 leans harder on optimization: Racing lines, braking points and car selection are studyable
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.