unfortunately the volume of regulations regarding automotive technology doesn't allow for this. if Toyota or any other manufacturer wants to make a chipless car, first the law makers have to allow them to.
I'm not aware of how you can do emissions monitoring through canbus (required) without chips. not sure how you can do rearview monitors (required) without chips. there are countless other things that are regulated that require chips. and competitor pressure for assisted driving technology like lane assist, blonde side monitoring, navigation/gps/etc all require chips.
the dream of going back to a chipless is a nice one imo, but they are just not legal.
Most of the biggest safety features that had the most impact were developed in the 1960's and 70's after people like Ralph Nader really pushed the auto industry to do better. There was a second big bump in safety in the late 80's and earlier 90's with the addition of airbags.
I'm pretty sure you could design a car with few or no computers in it that would be on par with most cars on the road today in terms of safety. Sure, you'd lose some safety features like backup cams, but nothing that huge compared with earlier safety improvements.
I'm not aware of how you can do emissions monitoring through canbus (required) without chips. not sure how you can do rearview monitors (required) without chips. there are countless other things that are regulated that require chips. and competitor pressure for assisted driving technology like lane assist, blonde side monitoring, navigation/gps/etc all require chips.
the dream of going back to a chipless is a nice one imo, but they are just not legal.