how do I create a reflections like on this car in screenshot
Currently, this is impossible unless you change the SkyBox to the surrounding objects.
It looks like the refection in the screenshot is reflecting the skybox. If that’s in Roblox, you can just max the reflection property.
This was achieved with selecting a “HD Skybox” and messing around with the transparency - reflection. If you’re willing to test this on your own try inserting a free model vehicle and select the parts and mess around with the reflection try putting it to something like 0.75, 0.65.
The way it works is by using an HD Skybox, so that it can reflect the Skybox on whatever model you’re wanting to have that reflection look. I then experiment in using a variety of Skybox and choose one of your own liking. This isn’t complicated to make just apply a skybox and set your reflection to something like 0.50 or lower.
Try modifying with the parts, you’ll need to mess around with the model parts and properties to achieve a similar effect like this. It’s all about experimenting and seeing what works best for you. Here is a quick video, you basically have to do a little experiment on your own: