Is that a boiler made out of wood? Why would a boiler be made out of wood?
For all purposes that would be incredibly impractical.
And why does the car have no bottom? These people in your fictional 19th century surely have some eye for safety don't they?
If I sat in the driver's seat in your car my legs would be mashed by the chain situated directly below the seat.
Also, people built steam powered cars. Those cars had something that looked somewhat like a steering wheel in order to move the front wheel around. Levers is rather an impractical way of manoeuvring a car. That's a little better suited to something like a train.