>>428317445mm is a 28mm equivalent in 35mm. Shouldn't be too wide for car shots. If it's a good deal I would grab it.
You can get an app called cadrage and then program it to your film format and lenses. It will show you a simulated fov based on the lenses you select. It isn't perfect, but it is close enough to give you a good idea of what you'll be getting.
