The word in German being used here is "Karosserie". The fitting translation would be "body", whereas "chassis" would be either "Chassis" or "Fahrgestell". The German text has been used for translating, which is why the word here is body. Since we still don't have a consensus here on which word is correct and which isn't, I suggest we leave it as it is for the time being.
Thank you for voicing your opinions and best regards,
pearlbay