The US backup camera fiasco was informative, because IIRC one of the domestic auto manufactures testified it was going to add $800 or some such to the price of

The US backup camera fiasco was informative, because IIRC one of the domestic auto manufactures testified it was going to add $800 or some such to the price of a car (can't find a link about it). Which back then was still like 3x or so the cost of an aftermarket system. The law passed anyway, and for years its remained a high priced option, until there were lawsuits about the feds failing to enforce the law and require all cars to have them. There are various links on the web about how even the NHTSA estimated it would be ~$40 added to the price of a new car, something many found high considering the costs of the cameras and how many cars already had LCDs that could be repurposed. Although I suspect the addition of backup cameras has given automakers excuses when it comes to rear visibility.