Or you can be smarter and go into the files of the drifting jeep, compare it to existing jeep, and figure out what type of values are different to make it possible. then you can use console commands to change an existing vehicle until you like the result, copy the original add-on's folder, and put in all the last changes you made in the console to each property and rename all the datablocks so they don't overwrite each other
...on the other hand, you could just give it to thorax.
but I personally like being able to do that type of thing myself.