I admire the
intent this website has, and I recognize that it is very difficult to come up a single accurate index. BUT, he has a lot of problems with missing data. Missing data is handled by
assigning the car some average value for cars in its class, so a vehicle that is much worse than average in some parameter (e.g. Chevy Blazers and rollover) will get a better score than it ought to. A car that is better than the average of its class will get a worse score than it ought to (e.g., I believe that the Insight would very rarely rollover).
Weight class is a big factor in the Insight's poor score, and again, this is penalizing the Insight for the Yugo's dangers. Also, for 2006 there are a lot of cars missing.
There are also inadequacies in the source data he uses (crash tests, etc.). For example, Ford Pintos tended to have the front axle fall off; also their gas tanks had a tendency to explode. None of these problems would show up in any of his data.
I would prefer to start out looking at The Institute for Highway Safety's (iihs.org) report on
"The Risk of Dying in One Vehicle vs another"
Unfortunately, they don't list most of the cars we would be interested in (Prius, Insight, etc) unless there is a non-hybrid version. You're about 5 times more likely to die in a Chevy Blazer than in a Honda Civic!!
--Walter
PS Handling is more a function of suspension design than weight; my 1962 Buick Skylark station wagon (2 bedroom + sunporch version) handled reasonably well if you had a wide road.
PPS Somebody in insightcentral.com has been running his insight in autocrosses.