Just like real-life companies, you can create a core model, and versions based on the core. Take Porsche 911 for example, you’ve got, the Carrera, Carrera S, Carrera cabriolet, and so on. Make automation game create a core model, then, you can create versions of the core, like supercharged engine, better transmission, or new grille!
Yup, that’s how it works already with platforms and models, see the “Building a car from engine to completion 2012” video on our youtube page
Will you be able to make different grades. For example same model but this grade has leather seats or a better engine etc. Or will you add what optional extras we can offer?