帮忙翻译一个句子，谢谢！

We plan to build the comprehensive market of a car, regard used car trade as the breakthrough point, drive the development of the relevant industries of other cars.

we are planning to build up an integrated auto market, which will start from the selling of the second-hand auto to boost the development of other relevant auto industries

We intend to build a comprehensive auto market ，depending on second-hand car to bring along the development of auto and other industrial trades。