(1) "The BMW might be the safer vehicle overall for some people."
You implied that BMW 5 isn't the safer vehicle for other people (other than "some people" in your post). How about comparing driving BMW 5 and driving Yaris by the same "other people" when all other conditions are identicle?
(2) "My main point was that you can not only look at vehicle size and mass to decide its safety."
I knew nobody only looking at size/mass when talking about saftety. What we talked about was - when all other conditions are the same, size/mass has huge advantage.
Please don't get me wrong - I am not against you single-hand picked. I want to make sure people particularly those being car iliterate visiting this forum can make a judgement based on our full info-feed, avoiding any potentially misled intepretation.
Here is a thread I posted long time ago on buying a new car. It represents what I stand:
http://blog.wenxuecity.com/blogview.php?date=200806&postID=37470
Respectfully,
Internuts