水准已经不错...只是用词方面不熟悉.建议修改如下:
"A solar car is a solar vehicle used for land transport.Its appearance is fairly similar to ordinary cars but,instead of using gasoline,it depends solar panels which convert sunlight into electricity.
Compared with ordinary cars,a solar car has many advantages such as low noise,pollution-free,and environment friendly.Its size is also small and easy to drive or park.
On the other hand,there are some disadvantages.Its price is expensive,and under-powered.The hightest speed is 70 kilometers per hour.
The biggest PROBLEM (不是 question!) is that it can just move about 100 kilometers for every charge!"