Studied the basic concepts of steam turbine systems, including how steam pressure can be used to generate rotational motion and move a lightweight vehicle. 

Identified and collected available materials including copper tubing, metal cans, toy tyres, and other recyclable parts. Also considered alternative lightweight materials from bookstores. 

Created the initial car layout using AutoCAD, including placement for the boiler, turbine, and axles. Considered material properties and design challenges during planning. 

Constructed the first steam turbine car using PVC chassis, a metal can boiler, copper tubing, plastic turbine, and wire axles. All components were assembled based on the AutoCAD design. 

Tested Design 1. The turbine failed to spin and the car did not move. Steam pressure was low and likely not directed effectively. Design 1 was kept for reference. 

Built two new prototypes using plastic cardboard chassis and toy tyres. Design 2 used metal rod axles and a small turbine; Design 3 used wooden sticks and a larger turbine. Both used smaller nozzles to increase steam pressure. 

Tested both new designs. Neither turbine spun and the cars didn’t move. Steam output was low despite long heating. Identified issues with steam pressure, heat transfer, and possible leaks. 

Analyzed all previous designs and identified key failures. Planned improvements such as adjusting nozzle size, improving heating, and optimizing turbine design. Final improved prototype will be built and presented.