In the context of cars, "6G" doesn't refer to a standardized or widely used term like "6-speed" transmission. There's no established automotive meaning for "6G." It's likely a model-specific designation or an informal term used within a particular manufacturer or community.
To understand what "6G" means, you'd need to specify where you encountered the term (e.g., a car's brochure, online forum, etc.) and provide more context.
