I recall a TV documentary a couple of years ago which featured responses to various RTA's. In one instance, in a high speed collision caused by a BMW driver, a Jazz driver survived with relatively few injuries, and the BMW was literally cut in two and the BMW driver seriously injured, if not worse.
The programme wrongly stated that the smaller car was a Kia -whereas it clearly showed a Honda badge in one shot.
No guarantee, of course, that this would be the outcome in every case!