* Wheel Well Clearance: The 2003 Impala's wheel wells aren't designed for such large diameter wheels. You'd likely experience severe rubbing on the fenders, suspension components, or brake calipers.
* Offset and Backspacing: The offset and backspacing of the wheel are crucial. A 22-inch wheel would need a very specific offset to fit properly, and finding one that works perfectly might be impossible. Incorrect offset can lead to rubbing or even damage to the vehicle.
* Tire Size: Even if the rim fits, finding tires that fit properly on a 22-inch rim and still allow for sufficient suspension travel could be difficult and expensive. The sidewall height would be significantly reduced, leading to a harsher ride and increased susceptibility to damage from potholes and other road imperfections.
* Speedometer Calibration: Changing to significantly larger diameter wheels will affect your speedometer's accuracy.
In short, while it *might* be *physically* possible with extensive modifications (like fender rolling, possibly suspension lift or modifications, and custom offset rims), it's not practical or recommended. The cost and the potential negative effects on handling, ride quality, and overall vehicle reliability far outweigh any aesthetic benefits. Sticking to wheels within the factory-recommended size range is always the safest and most sensible approach.
