Carmakers go extra mile to keep vehicles light

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However, carmakers are increasingly using lightweight materials such as high strength steels and aluminium alloys to make these monsters as light as they can...

"Increase in weight of the car does reduces energy efficiency and increases CO2 emission, if all other factors remain the same," said Rahul Bharti, executive director - corporate affairs, Maruti Suzuki, the country's largest carmaker...

So, to have more features and still have lower CO2 emissions, carmakers employ high strength-to-weight ratio materials like high tensile and ultra-high tensile steels, aluminium alloys, carbon fibre and other engineering performance materials...

"The usage of high-strength steels and hot-stamped parts have also increased in our new age cars," said Mohan Savarkar, chief product officer at Tata Motors Passenger Vehicles..

While the weighted average kerb weight of passenger vehicles sold in the country increased 3% in two year to 1,394 kilograms in calendar 2023, the average CO2 emission reduced from 148 g/km in 2021 to 129 g/km in 2023, data collated by Jato Dynamics show...