"That’s great - until things start to go wrong. Why couldn’t a software bug in the drive-by-wire have caused the sudden acceleration problems? After all, computers crash all the time.
"So far, Toyota’s response has boiled down to “trust us, its a mechanical failure.” There is no way to verify this, because the actual programming - the code that controls the gas pedal as well as those other nifty features- is a trade secret."