Audi A-Class Standard Wheel Base. The Audi A-Class is a four-door, full-size, luxury sedan manufactured and marketed by the German automaker Audi. The design of the A-Class was based on the Audi Prologue concept. Software: 3DMax This model has a realistic interior (with a seperate steering-wheel), seperate wheels (hinged at geometry centre), seperated calipers and high-res textures. Overall, it’s a great model for use on mobile applications/games and in XR (AR/VR) environments.