* Major modifications to the wheel wells: The larger diameter would significantly intrude into the wheel wells, requiring extensive cutting and potentially bodywork to accommodate them.
* Changes to the suspension: The taller wheels and tires would affect the ride height and handling, potentially requiring adjustments or upgrades to the suspension components.
* Potential rubbing issues: Even with modifications, the tires could rub against the fenders, suspension components, or other parts of the car, especially during turning or driving over bumps.
While it's *possible* with extensive and costly modifications, it's generally not practical or recommended. It would significantly impact the car's handling, ride comfort, and potentially its safety. Stick to wheel sizes recommended by the manufacturer for your Impala model year for the best results.