Here's my sudden acceleration story: I was at the drive-through at Starbucks, with foot on the brake, and car lurched ahead suddenly, seemingly on it's own. I pressed the brake harder, and the car wouldn't stop...until I straightened out my foot for better brake pedal contact. When I did, the side of my foot (the same foot on the brake) came off the gas pedal. I learned with my foot on the brake, it could also make contact with the gas.
This really happened to me. I didn't hit anything, and it wasn't Toyota's fault that I used poor "foot posture," or Starbucks fault for the design of the drive-up.
My point is that there are as many potential prolems with these cars as there are drivers. Is it possible that the sudden acceleration thing is, well, not really a thing?
When Audi went through the same thing a few decades ago, there was a lot of paranoia over those "death traps" from Frankfurt. The fix was the shift interlock device, preventing shifting out of park without the foot on the brake. Now all cars have them, because the best explaination for Audi's sudden acceleration problem was with drivers shifting into gear with their foot on the gas. (Idiot-proofing.)
The floor mat problem shouldn't be blamed on Toyota, just like it wouldn't be Toyota's fault if someone put in a bean-bag chair on top of the the driver's seat then had seatbelt problems. The sticking gas pedal fix was the equivellent of the Audi's shift interlock. It was a solution to a people-problem so that public would move on.
Now there's more concern that it could be electrical interference, but again, it's probably just a problem with people. Once the seeds of doubt about an electrical problem were planted in the public's mind over the last couple of weeks, you knew that you'd hear the there were other problems. I think that Toyota should have "fixed" the make-believe software problem when they flashed the ECM to add the brake overide feature. Perhaps a better
PR approach would have been to admit to a make-believe software problem, and come out with a make-believe fix.
You heard about the woman that testified that that her "runaway" Lexus took three miles to bring to a stop. That's what, about 2 minutes? In two minutes she didn't think of neutral? You can't make a machine as complex as today's cars "idiot proof," especially when there are so many varieties of idiots.