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Posts By: Paul Niedermeyer and David Lapidus
Here’s (perhaps) the finale of David’s remarkable data diving: a full chart showing all makes and models sold from 1995 through 2008, with their rates of reported UA incidents to the NHTSA. To make the findings easier to interpret, David has adjusted all the results as a relationship to the same year average, rather than just the raw results. This really highlights those vehicles with higher than average rates of reported UA.
The table has been inserted full after the jump, as well as our commentary, but if you want to access the excel file in its entirety, it’s here.
When it comes to mountains of data like the NHTSA vehicle complaint data base, one man’s junk is another man’s treasure(trove). Yes, there are limitations. But the remarkable degree of similarity of the UA rate between most badge engineered cars, and GM’s consistently low UA ratings speak of statistical relevance to some of us. One of those is David Lapidus, (TTAC handle: David42), whose data diving and Excel skills vastly overshadow mine.
In the last data dive, I used numbers from Edmunds to come up with a UA complaint rate for 117 cars from MY 2005-2010, excluding the flurry of complaints filed with NHTSA after the Toyota mat recall 0f 9/29/09. But those are cumulative, over the five years. David has taken it to the next level, to the individual model year. We may come back to the whole list another time, but initially we decided to focus on the Toyota Camry, since its large volume of sales and UA complaints would inherently increase the statistical accuracy of the numbers. And although this data dive may not solve the UA puzzle, it does raise serious questions about the most recent recalls and the Congressional barbecue of Toyota. (Read More…)