IIHS has completed two studies on LTV/car compatibility. The first study was published
by Baker et al. in 2008.4
This report analyzed the real-world crash experience of LTVs already
meeting the height-matching criteria and compared them with that of LTVs not meeting the
criteria. The data comprised MY 2000–2003 LTVs in collisions with passenger cars during CY
2001 to 2004. To identify the MY 2000-2003 LTVs that met the criteria for Option 1 or 2, a
survey was provided to automakers. The study calculated the risk reduction by obtaining the
ratio of the observed fatalities in crashes with LTVs that met the height-matching criteria to the
expected fatalities of LTVs that did not meet the criteria. The estimated benefits of energy-