Plug In Solutions, one of the largest plug-in hybrid kit manufacturers in California, says that it has come up with a fix for the “unintended acceleration” issue for all of Toyota’s cars—not just the hybrid ones. The fix comes in the form of a switch that allows drivers to “turn off” their engine in the case of an emergency. Interestingly enough, this is the same type of fix that regulators are currently debating a future requirement for on all vehicles.