How about a Hot Balloon car?

Question

Instead of making cars out of Metal...

We can just ride in the soft cloth car with thin wheels and with wood seats.

Instead of going up in the air... we can make it move forward, backward, and sideways by using a little helium.

Good idea?

Answer 1

Great Idea, but I am not sure that it is will be accepted by most people, which means that you have metal cars running into balloon cars, and that would be a shattering experience.

Answer 2

hot air balloons use propane for lift.  Helium is expensive.  The snoopy balloon in the parade has over $100,000 of helium in it.  They suck it back out and  reuse it.