The GoSun EV Solar Charger provides 1,200 watts of solar energy for your electric car; charging it in the parking lot at work can result in up to 30 miles of driving.
This product actually looks a lot like this science-fictional concept from eighty years ago, especially folded up. Science fiction author Robert Heinlein imagined it in his 1940 story Coventry; he called his vehicle the Steel Tortoise:
The vehicle he had chosen was... was extremely rugged, easy to operate, and almost foolproof. It drew its power from six square yards of sunpower screens on its low curved roof. These drove a constant-load motor, or, when halted, replenished the storage battery against cloudy weather, or night travel. The bearings were 'everlasting', and every moving part, other than the caterpillar treads and the controls, were sealed up, secure from inexpert tinkering.
It could maintain a steady six miles per hour on smooth, level pavement. When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.
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Poul Anderson's 'Brain Wave'
"Everybody and his dog, it seemed, wanted to live out in the country; transportation and communication were no longer isolating factors."
AI Note-Taking From Google Meet
'... the new typewriter that could be talked to, and which transposed the spoken sound into typed words.'