All these renders are made with Studio 2.0. These renders have a very big difference from the renders I was making before in terms of image quality and reflections. I'm still using LDD for building though as it proves to be a better interface for Technic models.
About this creation
I've spent about 2 hours building the logo. It turned out very nice. Resised an image of it to 64x64 and replicated it in Lego tiles. For simplicity I used only the 3 main colors instead of trying to use darker red and grey for the parts between 2 colors (anti-aliasing).
For now the only problem seems to be soft axles / flex hoses. That's the reason why I removed part of the exhaust in the Go-Kart above. But here are some models that depend on them alot for aesthetics. Here's an example of the Smart Fortwo.