We have computer-controlled braking and throttles now, and while I figure it's unlikely that someone will tinker with the brakes software (as long as it's not integrated into something he wants to tinker with) there has been a famous case where a factory throttle control has been alleged to be bad.
The emissions (and taxes in the countries where taxes are a function of emissions) aspects are more likely to be the justification of any repercussions against these activities.
The emissions (and taxes in the countries where taxes are a function of emissions) aspects are more likely to be the justification of any repercussions against these activities.