That's right I said "sexy curves and surfaces" as that is exactly what Autodesk AliasStudio can create by allowing designers to design hot looking and innovative products. Some of the well known items designed using AliasStudio are Wild West Motor Company, RKS Guitars, Honda, Land Rover, Nissan, Toyota, Jaguar, Apple products, Callaway Golf products, many well known bike designs, and many auto designs of most companies as the leading auto design software. AliasStudio integrates 2D sketching with 3D modeling for conceptual or industrial design.
Autodesk AliasStudio Personal Learning Edition (free Trial)
Tutorial on AliasStudio 2008 from Melissa Thomas on her blog Engineering Education for the Non-Civil Minded.
Nice article on AliasStudio 2008 PLE from Desktop Engineering LINK