I'm in the 0%! But in all seriousness, I think the problem here is that these were actually introduced back in the early 80s on high-end cars. So it took a lo

I'm in the 0%! But in all seriousness, I think the problem here is that these were actually introduced back in the early 80s on high-end cars. So it took a lot longer than 7 years to become widely adopted.