People will have to get out of their cars if the UK is to meet its climate change targets, MPs say.
The Science and Technology Select Committee says technology alone cannot solve the problem of greenhouse gas emissions from transport.
It says the government cannot achieve sufficient emissions cuts by swapping existing vehicles for cleaner versions.
The government said it would consider the committee’s findings.
In its report, the committee said: “In the long-term, widespread personal vehicle ownership does not appear to be compatible with significant decarbonisation.”
It echoes a report from an Oxford-based group of academics who warned that even electric cars produce pollution through their tyres and brakes.
The AA said the committee had underestimated the power of new technology to solve pollution in cars.
But the MPs are demanding improvements in public transport, walking and cycling, which benefit health as well as the climate.
They also criticise the government’s recent policies on the costs of transport.
They point out that most of the increase in average new car emissions in 2017 was caused by consumers choosing more polluting models because financial incentives to buy cleaner cars are insufficient.