Potential Positives:
* Spacious and comfortable: They are known for their roomy interior and comfortable ride, especially for the price point.
* Relatively inexpensive to maintain (potentially): Parts are generally readily available and can be relatively inexpensive compared to newer cars, *provided* they're not experiencing major mechanical issues.
* Good value: They're often found at very affordable prices on the used car market.
Potential Negatives:
* Reliability concerns: While some owners have had great experiences, many report issues with the transmission (especially the 4T65-E), electrical systems, and suspension components as they age. Repair costs can add up quickly.
* Fuel economy: Fuel economy isn't usually a strong point for these Impalas.
* Safety: By today's standards, the safety features are likely quite limited. Crash test ratings from that era were lower than what we see in modern vehicles.
* Depreciation: These are older cars; further depreciation is inevitable.
In short: If your dad's 2001 Impala has been well-maintained and hasn't had major mechanical problems, his positive experience is understandable. However, it doesn't guarantee the same experience with another 2000-2005 Impala. A thorough pre-purchase inspection by a trusted mechanic is crucial before buying one of these cars. Look for meticulously maintained examples with service records to minimize the risk of expensive repairs.