* 15-inch: This was a common size, especially on base models.
* 16-inch: More prevalent on higher trim levels and potentially as an option on lower trims.
It's impossible to give a definitive list without knowing the specific trim level and options of a particular 1997 Bonneville. The best way to determine the wheel size for a specific car is to:
* Check the tire sidewall: The tire size is printed on the sidewall, and the wheel diameter will be part of that (e.g., P215/70R15, where "15" indicates a 15-inch wheel).
* Look at the wheel itself: The size is usually cast into the wheel.
* Check the owner's manual: The owner's manual should specify the standard wheel size for that specific model.
* Check the vehicle's identification number (VIN): A dealer or parts store can use the VIN to look up the original specifications.
Therefore, while 15 and 16 inches were common, there's no guarantee that those were *all* the sizes offered or that a specific car had them.
