head to head
Grid 2 asks more than Virtua Tennis 4, and the gap is optimization.

Execution · Practiced Mastery
Cornering execution over memorisable circuits, with light prediction in wheel-to-wheel multiplayer.

Execution · Pure Mechanics
An arcade tennis game rewarding precise timing and reading human opponents.
Grid 2 leans Execution (Practiced Mastery); Virtua Tennis 4 leans Execution (Pure Mechanics).
Virtua Tennis 4 leans a little harder on execution, though the gap is small.
Grid 2
Car control through corners is the entire moment-to-moment test
Virtua Tennis 4
precise shot timing and positioning
Virtua Tennis 4 leans a little harder on reads, though the gap is small.
Grid 2
Online wheel-to-wheel adds light positional prediction
Virtua Tennis 4
human opponents can be out-predicted in rallies
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grid 2
Tracks are fixed and fully visible
Virtua Tennis 4
minor ball-bounce randomness
Grid 2 leans clearly harder on optimization.
Grid 2
Racing lines, braking points and car selection are studyable
Virtua Tennis 4
minimal build depth, mostly play skill
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.