How safe is too safe when it comes to cars? The most likely reaction you'll get from people when posed with that questions is that there's no such thing as too safe. But after chatting to Mercedes-Benz engineers at the launch of this weekend's S-Class cover car, I've changed my thinking.
While the S- and E-Class Mercs are dripping with cutting edge safety tricks - as are most of the marquee European brands' flagship models - it does pay to remember that the bulk of other vehicles on the road haven't got these life-saving abilities.
And in New Zealand, with our embarassing 14-year-old fleet average, a hell of a lot of cars haven't got much in the way of electronic safety aids at all.
The German engineers, who are all highly excited about the prospect of building autonomous cars, still believe that it's important to have systems that only take over in utterly dire situations.
With the S-Class collision avoidance systems and even self-driving features, the vehicle warns the driver repeatedly before completely taking over.