This is a simple quick and dirty 35 degree display stand I whipped up for my brother in laws LEGO Porsche. Should print fine with no supports however I have only tested on my P1P, your mileage may vary with the upper flat bits.
Print both parts and they should fit fairly snug together, you can glue them together or print them attached if you choose, I only made the back part because it wasn't balanced originally.
Lego_Porsche_42176_Stand_Back.stl | 112.2KB | |
Lego_Porsche_42176_Stand_Front.stl | 156.1KB |