I wrote new plugin for car animation.
It is free.
You can download it from http://www.karba.eol3d.com/Plugins/MadCar/
Movie http://www.karba.eol3d.com/Mustang.mov
http://www.karba.eol3d.com/Plugins/MadCar/hill.mov
http://www.karba.eol3d.com/Plugins/MadCar/turn.mov
http://www.karba.eol3d.com/Plugins/MadCar/wheel_moving.mov
32bit version (3dsmax9/2008) http://www.karba.eol3d.com/Plugins/MadCar/MadCar32x.dlo
64bit version (3dsmax9/2008) http://www.karba.eol3d.com/Plugins/MadCar/MadCar64x.dlo
Help file http://www.karba.eol3d.com/Plugins/MadCar/MadCar_Help_ENG.doc
Test scene http://www.karba.eol3d.com/Plugins/MadCar/MadCar_Sample.rar