New Delhi: Maruti Suzuki India Limited is set to unveil India’s first mass-market flex-fuel passenger vehicle capable of running on 100 per cent ethanol (E100) on June 4, ahead of World Environment Day.
The announcement marks a significant milestone in India’s efforts to promote cleaner fuels, reduce dependence on imported fossil fuels and strengthen the country’s biofuel ecosystem.
The unveiling ceremony will be held at Delhi’s Taj Palace and will be attended by Union Minister for Road Transport and Highways Nitin Gadkari and Union Minister for Petroleum and Natural Gas Hardeep Singh Puri.
First passenger vehicle compatible with E100 fuel
The upcoming model will become the first mass-market passenger car in India capable of operating entirely on ethanol fuel.
The development was first confirmed by Gadkari during an event in Nagpur on May 23, where he revealed that Maruti Suzuki would launch an E100-compatible vehicle as part of World Environment Day celebrations.
While the company has not officially disclosed the vehicle’s identity, industry sources believe it could either be the flex-fuel version of the WagonR or the Fronx.
The WagonR Flex Fuel prototype was showcased at the Bharat Mobility Global Expo in 2024, while Suzuki presented a flex-fuel version of the Fronx during the Japan Mobility Show in 2025.
Government pushes biofuel adoption
The launch comes shortly after the Ministry of Road Transport and Highways amended vehicle testing and certification norms to include E100-compatible vehicles.
The regulatory changes have created the framework necessary for automobile manufacturers to introduce pure ethanol-powered passenger vehicles in the Indian market.
The Centre has been actively promoting ethanol blending and alternative fuels as part of its strategy to reduce fuel imports and lower vehicular emissions.
According to Gadkari, nearly 87 per cent of India’s petrol, diesel and natural gas requirements are currently met through imports, making energy security a critical national priority.
He has repeatedly emphasised that wider adoption of biofuels could help reduce India’s import bill while generating additional income opportunities for farmers through increased demand for agricultural feedstock used in ethanol production.
How flex-fuel vehicles work
Unlike conventional petrol vehicles, flex-fuel vehicles are engineered to run on varying blends of petrol and ethanol, including pure ethanol.
Because ethanol is more corrosive than petrol and absorbs moisture more easily, manufacturers must use specially designed components such as fuel injectors, fuel lines, seals and engine management systems.
These modifications allow vehicles to safely handle higher ethanol concentrations without affecting performance or durability.
Flex-fuel technology has already been widely adopted in countries such as Brazil, where ethanol is a major automotive fuel.
Infrastructure remains a challenge
Although the technology is ready for deployment, large-scale adoption of E100 vehicles in India is expected to take time.
One of the key challenges is the limited availability of high-ethanol fuels across the country.
India currently follows the E20 petrol standard, under which petrol contains up to 20 per cent ethanol blending. However, the government is studying the feasibility of introducing higher ethanol blends such as E22, E25 and E30 in the future.
Expansion of ethanol production capacity and fuel distribution infrastructure will be essential before E100 vehicles can become mainstream.
Step towards cleaner mobility
The introduction of India’s first E100-compatible passenger vehicle is expected to play a key role in the country’s transition towards cleaner and more sustainable transportation.
Industry experts believe the launch could encourage wider investment in flex-fuel technology and accelerate the development of alternative fuel infrastructure.
With growing focus on reducing carbon emissions and improving energy security, ethanol-powered vehicles are emerging as an important component of India’s long-term mobility strategy.
The upcoming launch is therefore being viewed as a significant step towards diversifying the country’s transportation fuel mix while supporting domestic agriculture and reducing reliance on imported crude oil.