>If you mean the former - that's a trickier thing to evaluate. Less people have access to a gun than a car, for starters, and most people use a car much more often than they use a gun. Cars are designed to transport people and goods - guns are designed to cause damage - so defining 'accidental use' of both is an interesting question. A bit of quick googling comes up with some numbers, suggesting guns are now - in absolute terms - the cause of death for more USA citizens than cars ... but naturally there's some dispute about how those numbers are determined, and some strong interest in not comparing those stats to other countries.

I'm interested in both car accidents vs gun accidents and car accidents vs all gun related deaths, especially in countries with sane gun (e.g. well thought out, not let's ban everything) regulation that aren't the US.

Here's some stats that I've found just now:

Switzerland: gun related deaths per 100k people: 3.01, with 3.3 being the traffic accidents number.[1][2]

Czech Republic: gun related: 1.8, traffic accidents: 6.1.[3][2]

1 - http://www.gunpolicy.org/firearms/region/switzerland

2 - http://www.gunpolicy.org/firearms/region/czech-republic

3 -https://en.wikipedia.org/wiki/List_of_countries_by_traffic-r...