November 6, 2026

TPMS display

Tyre Pressure Monitoring Systems in Luxury Cars: Direct vs Indirect TPMS

Direct TPMS uses a battery-powered pressure sensor inside each wheel and reports real readings to the dash. Indirect TPMS has no sensors of its own. It uses the ABS wheel-speed sensors to spot a tyre that’s turning faster than the others because it has lost air. Direct is more accurate and shows actual pressure, but sensors cost money and their batteries last about five to ten years. Indirect costs little and needs no battery, but

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BMW M340i

Run-Flat Tyres vs Self-Sealing Tyres in Luxury Cars

Run-flat tyres keep a luxury car moving after losing all their air, typically for about 80km at up to 80 km/h, thanks to reinforced sidewalls. Self-sealing tyres have a sticky inner layer that plugs small tread punctures, up to about 4mm on Pirelli’s Seal Inside, so the air stays in and you may not even notice. Run-flats cover worse damage, including some sidewall hits. Self-sealing tyres ride more like normal tyres. On India’s broken roads,

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