Your pretty little graph is useless. It's fatalities per 100,000 vehicle years. Fatalities per rear end collision is the statistic you need, particularly high speed ones.
Well said....
Not only that, but look at the data even more closely - the 85-97 and 92-97 columns include ALL CV sales. The CV became significantly more heavily weighted towards police sales in later years. That accounts for the shift from 85-97 to 92-97. 85-97 data, with far more taxi and retail sales, shows no difference from the impala and caprice. As retail sales and taxi sales dropped and more of the overall sales went to police use, the number increased. Lord knows the increase wasn’t because of a design change - Ford hasn’t done anything significant to that platform in decades.
Even the 92-97 vs the Caprice/Impala is likely a statistically insignificant difference. Ford typically sells around 60,000 or so Crown Vics per year lately (on track for under 35,000 this year). The difference between the 92-97 CV and the Caprice/Impala appears to be roughly 0.2 or so on that scale - or one extra fire every half million vehicle years. At those sales rates, you’re talking barely ONE extra fire per year.... So you’re comparing 2 fires to 1 fire per year and saying its a statistically significant difference?
Spktyr, you clearly don’t know jack about statistics.