head to head
vs
Forza Motorsport 4vsGrand Prix 3
Forza Motorsport 4 leans Execution (Practiced Mastery); Grand Prix 3 leans Execution (Practiced Mastery).
Forza Motorsport 4Grand Prix 3
Axis by axis
Execution8 vs 8
Even - both lean on execution about the same.
Reads1 vs 1
Even - both lean on reads about the same.
Variance1 vs 2
Grand Prix 3 leans harder on variance: Weather shifts and mechanical failures inject some chaos
Optimization6 vs 7
Grand Prix 3 leans harder on optimization: Car setup and race strategy are an engineering layer
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.