No, the RAV4 is not built on a truck chassis. It shares its platform with the Toyota Corolla and Matrix. The RAV4 was designed to be a more car-like alternative to traditional SUVs and has become one of the most popular vehicles in its class. Thanks to its unibody construction, it's both lighter and more agile than many of its rivals. It also has a lower center of gravity, which helps it handle better in all types of driving conditions.