head to head
vs
Forza Horizon 2vsStreet Racer
Forza Horizon 2 leans Execution (Pure Mechanics); Street Racer leans Execution (Pure Mechanics).
Forza Horizon 2Street Racer
Axis by axis
Execution7 vs 6
Forza Horizon 2 leans harder on execution: Racing lines, braking points and car control lead everything
Reads1 vs 2
Street Racer leans harder on reads: Shared-lane multiplayer adds light jockeying against humans
Variance1 vs 1
Even - both lean on variance about the same.
Optimization4 vs 2
Forza Horizon 2 leans harder on optimization: Car tuning and route knowledge reward preparation
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.