Allows the driver to connect to his vehicle, isn't that done via hands, bum & feet.
Why do manufacturers insist on creating a niche that no-one knew they needed only to discover they can't live without 'it'. And as for it being a smart watch that can do all manner of highly tecnical things, can it tell the time or is it to busy being an Ipod of a cell phone or a computer et al, you get the picture.