Here are some very very quick benchmarks...
System:
Intel P200MMX
32MB RAM
Diamond Monster 3D
Frame rates: The numbers are improved but don't "feel" very different.
Frame rates before upgrade
With Force Feedback
Empty track: 9-10 fps
Race: 7-8 fps
Without Force Feedback
Empty track: 12-14 fps
Race: 8-9 fps
Frame rates after upgrade
With Force Feedback
Empty track: 11-16 fps
Race: 9-12 fps
Without Force Feedback
Empty track: 13-19 fps
Race: 13-14 fps
AI
My tests have been very brief, but if I go slow around turn 1, the other
cars actually pass me now. The few spins that I took show that the AI seems
to be substantially improved.
Well, hopefully I'll have more details by tomorrow.
Dave