The US government is close to agreeing a proposal for its own scrappage scheme.
The proponents of two competing congressional bills said last Thursday that they were nearing a compromise agreement.
One of the proposals, aimed at removing the least fuel-efficient vehicles from the road, would offer vouchers for up to $4500 (£3000) to scrap the most uneconomical vehicles. These could then be used against the purchase price of a newer, more efficient vehicle.
The other proposal focuses on encouraging sales of US-made vehicles. Under this proposal, owners of vehicles at least eight years old would get up to $5000 (£3400) off a US-made vehicle, less for a North American-made one and nothing for cars made outside North America.
Both proposals also include the option of trading in old cars for a public transport pass.