A **tire with incorrect inflation pressure** can have several issues affecting its performance and safety:

- **Inflation pressure lower than recommended**:
- The tire heats up and deforms, leading to irregular and faster wear.
- There is a higher risk of the tire bursting due to overheating and deformation.
- The vehicle consumes more fuel and is less stable, especially on wet surfaces.

- **Inflation pressure higher than recommended**:
- The tire has less contact with the ground, reducing its grip and causing uneven wear, concentrating more in the center.
- The vehicle may vibrate more, as the tires do not absorb road irregularities well.

Therefore, a tire with incorrect pressure wears unevenly and has a higher risk of bursting, confirming that **answer 1 is correct**.