```
Having an engine doesn't mean you have a car or construction machinery.
Chassis, moving parts, suspension systems, transmission systems, body design, control systems... to build a good car, many things are needed beyond just the engine.
However, the issue of quality can be solved later; having an appropriate power source marks the beginning of everything.
To put it bluntly, if you take alloy steel to make a frame, a transmission rod, some wheels, and create a running tricycle, then pull a flatbed cart behind it, it's already a big step forward from relying on human or animal power.
Now that we have the engine, if we could also pull out some vehicle or construction machinery design, the heavy industry of Gu Hang's territory could take a big step forward.
