Take a look at this awesome 3d printable robot car chassis featuring 4 turning wheels and it can even ride sideways!!
You can also find only the 180 deg steering part if you want to use just that on your own chassis.
You can find a demonstration of the design here:
The second and last photo's are from the chassis fully assembled (you can probably do a better job than me wiring the electronics
Additional needs for this project to work:
You can always message me for any help or to get other files!
The author marked this model as their own original creation.