Can we get Achievements for gog version PLEASE.

You can thank WIRED for NOT getting achievements. Here is their reply (from their discord):

"Sorry for any confusion here – in this instance, GOG themselves implemented the game in its whole, this wasn’t a version the developer worked on. This version is simply a DRM free version of the game – no achievements or online, just pure combat racing, solo or couch co-op, all DLC bar the DeLorean. This is advertised and we do not have any plans to bring other features into this version. Again, sorry for any confusion here and we hope you still manage to enjoy GRIP on GOG."

Once again devs/publisher thought they could make some easy money by treating GOG customers worse than Steam and by not having to do additional work.