Hello all, I work in a school, and we have an Applied Tech teacher. He used an app called Car Builder from a now defunct company called Optimum Resource. Well, I upgraded his Mac to 10.7, and now Car Builder doesn't run as it's a PowerPC app. Like I said, the company that made the app is now defunct, so I can't get any updates for it, or even buy a Windows version. Does anyone know of a different app he can use? Windows or Mac is fine, although it has to run on either Windows XP or Mac OS X 10.7. Some of the other software he needs for curriculum needs the older OSes to run. If you haven't used Car Builder before, it allows you to design a car, and then see what kind of drag the car would have. Although the company is now defunct, it's web site is still active: http://www.stickybear.com/science-skills/cbd.htm It's a cool app, but my district is kinda dragging its feet to find a more updated Applied Tech curriculum / computer software and hardware.