When I read this I thought that it must be wrong, since it is well known that a sphere maximizes volume/area. However, if cars traveled through tubes, this would be relevant. Cars, though, travel on planar roads so that a square cross section does maximize interior space. Longitudinal curviness, though, will give more space, which may be one reason, besides aerodynamic considerations, that windshields and rear windows aren't usually boxy.
All in all, I think boxiness has more to do with inexpensive manufacturing techniques (extrusions) than anything else. To the original point of compact cars being alike, my only thoughts are that there is less money in the budget for style and less incentive to take a risk on unproven stylistic features. > >Another note: isn't square and boxy a simple way to maximize space >inside the car? > >Fabio -- John A. Viator, Ph.D. Beckman Laser Institute 1002 Health Sciences Road East University of California Irvine, CA 92612 (949)824-3754 (949)824-6969 fax [EMAIL PROTECTED]