Here's why:
* Wheel Bolt Pattern: The bolt pattern (number of lug nuts and their spacing) of 20-inch "universal" rims is not standardized. A 20-inch rim might have a bolt pattern that's completely incompatible with the Cirrus's.
* Wheel Offset: The offset (the distance between the mounting surface and the centerline of the wheel) is crucial. Incorrect offset can cause rubbing against the suspension, brakes, or fenders. 20-inch rims are usually designed for larger vehicles with greater clearances. A Cirrus is a compact car with limited space.
* Brake Caliper Clearance: 20-inch wheels often require larger brakes, which a 2000 Cirrus does not have. The larger diameter wheel could interfere with the existing brake calipers.
* Suspension Geometry: Larger wheels change the suspension geometry, affecting handling and potentially causing damage.
In short, while you *might* find a 20-inch wheel with the correct bolt pattern, the offset and brake caliper clearance issues make it highly improbable that it would fit correctly and safely. You'd likely need significant modifications (like spacers, which are generally discouraged) and potentially custom-made parts, making it an expensive and potentially unsafe undertaking. Stick to wheels sized within the manufacturer's recommendations for your 2000 Chrysler Cirrus.
