I don't model cars, or anything even remotely organic... come to think of it, I don't model anything that exists in real life. :o( I guess that's my work around to making credible models, work in the sci-fi genre, that way you can't really go wrong. :oP But seriously, most 3D applications will have a way to measure your meshes in 3D space. In fact, my favorite non-3D modeling tool is a tape measure. Like Teyon said, tons of reference material. You can use the images as modeling templates, by loading tri-view images (top, front, side) as background images to trace over; or simply by looking at them to get a sense of proportion and scale. The critical thing about tri-views is that they all have to be the same scale relative to each other, and positioned in the same reference location in 3D space. Hope that helps. :o) Cheers! M

Mind Over Matter
"If you don't mind, then it don't matter."