准备买一辆二手车，三年6万miles
warranty里有一条规定是
Transferable - The powertrain warranty can be transferred from owner to
owner, adding value at the time of resale or trade-in.
请问“adding value at the time of resale or trade-in”什么意思？
另外这个warranty是powertrain warranty，有什么特殊的吗？不懂车，谢谢解答！
