Racer support is coming ... http://www.bobstrackbuilder.net/news.aspx So long ago I committed to making an export for Racer since it seems to be a popular free game. Much as happened since then, mostly I have been waiting to complete the BTB features that have an impact on file formats. The number of these types of features has grown over time with the addition of SObjects and the yet-to-be-released Complex Objects. Now that they are implemented I can work on supporting another game format. Racer is created by Ruud van Gaal and he's been answering dozens of questions in order to help me get the format right. There are some limitations such as blending not working, nor do the more complex shaders such as bump/spec mapping work. Because Racer works a bit differently to the other games currently supported by BTB, I'm not sure whether these advanced features will make it, without creating a version of BTB specific for Racer. Like usual there's still more things to add which will come over the next few patches. I won't elaborate on them because right now I don't know what will be possible to support and I've yet to explore all the features Racer has to offer.