Guessed right, its Edge Of Seventeen by Stevie Nicks
@ Shards-Of-Fate: Just as well, you can use the template of the Cadillac.
The car should have (if it is a normal car and not a bus or tank or whatever) similar dimensions.
It should be noted that the car should have more an unusual style (thats why the template is just a Cadillac that will never find the way into the game: Its just for imagination of how big the vehicle should be), having elements of the early 20th century
merged with outlines of modern cars.
Zerons world is set in a parallel universe. That is why familiar things like buildings, war material, cars etc. look unusual, dated or completely different and forms of society we are used to do not exist and were replaced by totaly odd ones. Apart from that are many things anon we know and use every day.
That means in a nutshell: The cars should not just be variations of Tin Lizzies, but they could have parts and elements of it.