The world needs a new source of energy, an unspillable source.

Why can’t we use Steam-Power Engines in vehicles?

I had reviewed information which showed how technology made it easier to use electricity to quickly heat water-even if frozen solid. Frozen water was an issue for the North in Winter. Steam out sold electric and gas cars for a while, but with gas being so cheap in the day, and the wait time for the steam to generate, the Gas car won out. Today the technology is here to use various liquids for steam. Recycle/return exhaust systems to make steam vehicles more economical. With less maintenance and materials needed- no Transmission- braking and throttle are all reliant upon the steam power. The vehicle would be much safer from the redundant exhaust systems…No Fires from accidents…
Steam cars were around back in the 1790’s and the land speed record set in the late 19th Century was 225mph.
The Steam engine is listed as the most efficient engine.
the engine can use generators and make electricity for other power-systems and perhaps be steam/electric hybrid. I need more insight.