Hello to all, as i saw the forum and all the posts i hope i come to the right place. I don't know much about physics, but reading and looking throw the physics files i managed to a bit understand how things works. Now i am try to make a car physics for the old rally simulation Richard Burns rally. When i look at the files i don't know how to calculate the VE value in the file common.lsp you can find a copy of the file here: http://www.2shared.com/file/RniwTcoR/common.html I know that this values are connected with car horspower and torque, but i don't know how to calculate them. I hope someone can help me. Thanks!