I have not used GLScene so I'm not sure that would be the best way to sandbox it as GLScene may be doing things *its own way* that may not be directly compatible with Newton, hence the need for the OxNewteon component.

I could not find what was the problem. If I were to look into it further I would send an email to Sascha as I'm sure he would be more than happy to help with the intricasies of Newton.

Also take a look at http://newton.delphigl.de/ and in particular his http://www.delphigl.de/files/glNewtonCarDemo2.zip . Maybe that might shed some light. It's straight OpenGL ( IIRC ).