Wind resistance created by opening windows while driving res

供参考
注
主语是 wind resistance
动词是 results
主要结构
wind resistance results in a fuel penalty
完整的从句
Wind resistance (which is) created by opening windows while (someone is)
driving results in a fuel penalty (which is) at least as great as (a fuel penalty)
that (is) incurred by using air conditioning.

Wind resistance created by opening windows while (you are) driving results in a fuel penalty at least as great as that incurred by using air conditioning

这个句子的大概意思是：由开开车时打开窗户而产生的风阻力导致的燃油附加值相当于使用空调产生的费用。（我理解的意思是开车时，开着窗户还不如开空调，更凉快，费用一样）
这个句子确实有很多省略的地方，定语和状语什么的比较多，补全了是： Wind resistance that is created by opening windows while you are driving results i...