R. W. Allen, D. H. Klyde, T. J. Rosenthal, and D. M. Smith, Estimation of Passenger Vehicle Inertial Properties and their Effect on Stability and Handling, Journal of Passenger Cars - Mechanical Systems, Vol. 112, No., 2003. (SAE 2003-01-0966, STI-P-600)Vehicle handling and stability are significantly affected by inertial properties including moments of inertia and center of gravity location. This paper will present an analysis of the NHTSA Inertia Database and give regression equations that approximate moments of inertia and center of gravity height given basic vehicle properties including weight, width, length and height. The handling and stability consequences of the relationships of inertial properties with vehicle size will be analyzed in terms of previously published vehicle dynamics models, and through the use of a nonlinear maneuvering simulation.