The Insurance Institute for Highway Safety (IIHS) just can't stop ramming large, bumper shaped projectiles into the newest vehicles for 2007. Today the IIHS released the results of it most recent tests and it looks like Toyota is well represented at the top and the Caliber has made impressive improvements over its predecessor, the Dodge Neon.

The Toyota Camry received the institute's highest rating for a side impact, receiving an "excellent" score mainly due to its standard side-curtain airbags that provide the best possible protection to its occupants in one of the most common crashes.

Also tested was the Neon-replacing Dodge Caliber, which handily beat out its elder for both front and side impacts. Whereas the Neon was one of the worst vehicles tested at the time, the Caliber, with its standard side-curtain airbags, was awarded a "marginal" designation, compared to the Neon that received "poor" scores throughout its lifetime.

Other vehicles tested include the new RAV4, Kia Optima, Lincoln Zephyr and Hyundai Tucson.

One aspect of the tests that deserves note is that all the manufactures did not perform as well on the rear-impact tests as the IIHS would like. Where front and side impacts are some of the more dwelt upon crashes, the IIHS contends that back and neck injuries caused by collisions from behind are becoming more of an issue and they would like to see automakers address this problem with more research and development.

Follow the link to read the full report.