What you describe already exists but it doesn't get called "automatic". The car ...

klagermkii on Nov 17, 2016 | parent | context | favorite | on: Fewer than 3% of cars sold in the U.S. have manual...

What you describe already exists but it doesn't get called "automatic". The car companies don't call it that, the drivers don't call it that. It'll be called DCT or the older sequential manual gearbox.