Well it is similar to the hack you can find over at
http://www.djssims.comI don't think there is an easy way to make fuel efficient or even solar powered cars cost less to drive than a old run-down gas guzzler. Only humans can tell the difference between car models, while Sims and the game files can not. The only way I could think to make the amount of money charged be fair was by the value of the car.
But if you want all the cars to cost the same amount to drive just like the hack at djssims does, you can set all the divisor
values to 32767. And then set the minimum cost to the amount that every car will cost, such as $30 like the djssims hack does.
*** BTW, it turns out that this hack does completely conflict with "antiwatchout". If you try to use both, then you will not be able to drive any car at all. The interaction will just keep getting canceled.
But you can also delete the "Sub - Trans To Drive" file from the antiwatchout hack to make both hacks work together if you really like my hack.