At what negative tire pressure should a Porsche not be driven?

[TaylorMarie]

Tire pressure below 1.5bar will trigger an alarm. Therefore, this value is also a general recommendation for tires without tire pressure monitoring sensors - it's advisable not to go below this level. Normal tire pressure for regular passenger cars typically ranges between 2.1~2.8bar. Here's relevant information: 1. Underinflation: Insufficient pressure increases tire body deformation, making sidewalls prone to cracking while causing excessive flexing movement. This leads to overheating, accelerates rubber aging, causes fatigue in the cord ply, and may break the cords. It also increases the tire's contact area with the road, accelerating shoulder wear. 2. Overinflation: Excessive pressure overextends the tire cords, reducing the tire body's elasticity. This increases the vehicle's load during driving, potentially causing internal cracks or blowouts upon impact. Overinflation also accelerates tread wear and reduces resistance to punctures.