I made a start with mapping different interesting communities and experts and will continue adding to these, plus I’ll add the events I found to the right topic. But let me know if you have any other directions you think I should look into 
Research
- Selena group Poland (car parts from weeds)
- Paul Nieuwenhuis - Centre for Automotive Industry Research at Cardiff Business School and the Electric Vehicle Centre of Excellence (twitter)
Car influencers
- Women Automotive Network (@inge )
- Chris Fix (Youtube)
- Eric the car guy (Youtube)
- Electric Blue (Twitter)
Car parts art
Automative journalism
- The Guild - The world’s largest association of automotive editorial professionals
- Motoring Research
- Influx (Youtube)
Offroad community
- Terreinrijden.nl
- Transeuro trail
- 4x4 offroad europe
- Forum offroad.com
- Les Comes 4x4 festival (FB)
- 4WD Festival 24&25 September
- Babod Off-Road Festival (FB) June 7-12th 2022
Van Life
- Quirky Campers EVENT 13-15 May The only handmade campervan festival
- FB
- IG
Car designers hobbyist
Car Sharing
Car startups:
Parts/tools
- unity car real-time 3D to the world’s automotive Original Equipment Manufacturers (OEMs) and suppliers
- Koover, india
- My Car Guide, South Africa
- RIGS, Mexico
- Partly, New Zealand
- Speero, Saudi Arabia
Electric cars
- Lightyear electric cars Netherlands
- Volta Trucks Sweden, electric vehicle manufacturer that focuses on creating sustainable cities
- Wallbox, Spain, electric cars
- Polestar, Sweden
- EasyMile, France, specializes in both autonomous car software and smart mobility solutions
- Rimac Automobili, Croatia, hypercar and electric vehicle component company
- Sono Motors, Germany
Self-driving
Auction
- EU:
- US: carforcoin