Let’s be constructive about this. You’re designs are awesome, but your engine/car needs work. Try to use the less quality pts as possible, it will make your car more real, because quality pts will throw your ET and PU through the sky.
ET = engineering time, it’s how much time (in months, if I remember correctly) it will take for your engine/car to be developed.
PU = production units, it’s how hard it is to build your engine/car.
An engine/car with high ET will take way too many years to be developed.
An engine/car witg high PU will be hard to build, meaning it will take way too long to build one.
So, right now your cars are unviable, since they will take forever to develop and even more to build.
Try to work on this, anything you want to know, please ask.