Someone will surely pick it up some day, since it's a challenge and programmers like a challenge. If I had more free time I'd like to look into it myself but been way too busy to start to learn the deeper down mechanics of the MAME code base AND emulation.
There have been a few tweaks to the Zeus/Zeus 2 MAME drivers in the last year or so, so someone is still looking at it. Once Zeus 1 is tackled and optimized fully then I'd see them focusing on Zeus 2 to knock out Crusin' Exotica and The Grid support.
On that note I'm working on trying again to capture game footage directly from the board. I have a few bits of info that may help just need time to hook it all up.
I would like to try this game out, especially since I didn't hear about it until Deadly Alliance and since then have heard nothing but good stuff about it...
The game is definitely a ton of fun. I've often thought that someone with enough modding skills would be able to easily mod Quake3/2 to play exactly like The Grid. (I do not sadly) I'm surprised there hasn't been more people looking into getting it to work.
I was able to dig this up.
View attachment 7504
It isn't much, basically just Sarge from Quake with a Grid skin. We got most of the weapons working in Quake at one time (the Cannon ball was by far the coolest one). If I still have the source code, it would be on a zip disk somewhere!
Do you still have the mod?
do you have the soundtracks or something? :/