Idea Of Buggy Chassis

This is the design of the new chassis we can use because the lego breaks everytime we use it so we had to switch over to some other idea. I prefer this design because its simple and capable of holding the circuit well. So this is just an idea how it would look like and I will make the original chassis out of ply(wood) about 3mm thickness. Also these CAD designs are not to scale. Please give me if you have any suggestions.