Deflated OTR TYRE has a "cage" of plastic inside their car tyre that can retain its shape in the event of a sudden flat tyre. Also, the car's pressure monitoring system alerts the driver as the vehicle's deflated BIAS Truck Tyre continue to operate, while ensuring that the driver has never lost control of the vehicle. Deflated PCR Tyre technology, is currently in its infancy, the cost is more expensive. Driving on a flat road, discouraged car tyres are not recommended, tyres should be repaired as soon as possible.