A final nail into the impreza co,er,chassis? Shoot the engineer who designed the doors while you are at it.

Mar 27, 2009 2 Replies

I'm pouring over some EuroNCAP test results and while no car in the lightpole side crash test I see have managed to rise above the grade "fair" (that's citroen c3 picasso pigly) basic impreza managed to score "unacceptable" in the chest protection. Head protection for some reason is "high" and abdomen protection is "sufficient". In the test the 10" pole on a platform is side impacted at 29km/h (about 17 mph) on a stationary car. I wonder how useful is that test and what real world scenario it's meant to model, but for comparison in the same test for Lancer head protection is high, chest "weak", abdomen "fair". Interestingly enough the pole sideimpact results for Mazda 6 match those of Impreza.



Is the cause a B pillar designed by a material science "F" student or just the regular corporate bean counting speading like cancer from big 3 into the big 4 right over the pond? I see that B pillar on lancer is a bit longer than on impreza contributing to a larget overall blind spot, but, still, chassis stiffness rules above that, no? Me thinks in case of a rollover lancer would ride on its roof better than impreza. What do you think?


The B pillar on the Impreza, at least on my 2004. is a steel rod nearly 3/4" thick that looks like a piece of rebar embedded in a channel in the sheetmetal. It's a very substantial piece, though I don't know whether the protection it affords is primarily for side impacts or rollover support. I came across an article in Firehouse magazine, a trade journal for firefighters, cautioning that the blade used in a standard hydraulic cutting toll won't easily sever this rod and a heavier blade must be substituted for Impreza's from 2002-2005.

suburboturbo:

The crash comparison was for new model (which has a different chassis). Still you have a perfect illustration that it's not the size that matters but how you use it :-) The culprit might be the roof then or the floor chassis members. Only the FHI chassis designers would know which part sucks, or if it's the parts working together that suck, and, if the suckiness is specific to the entry level impreza only.

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