Jaguar has won a £534 million injection of capital from Ford, its US owner, after the weakness of the luxury car market left the marque in a "serious" position.
The prestige car company, which received a £260 million injection from Ford last year, said that it was in negotiations over the accounting treatment of the latest recapitalisation.
Jaguar's plea follows continued losses, which reached £601.1 million in 2003 and are believed to have remained in nine figures last year.
A company spokesman said that the size of the latest recapitalisation reflected the "serious needs" of the business.
"Jaguar is struggling at the moment," he told Times Online.
While Jaguar has made significant progress in Ford hands, plans to raise sales to 200,000 cars a year, from 125,000, were abandoned last year amid tough competition in the premium market and a drift among wealthier motorists towards SUVs. Jaguar in September announced the closure of manufacturing at the Coventry plant where it was founded, and the loss of more than 1,000 jobs, to match better manufacturing capabilities with production needs.
"We have faced and tackled the fundamental reality that Jaguar simply cannot support three assembly plants," Mark Fields, the executive president of Ford Europe, said at the time.
In the US, Jaguar has struggled to maintain share of a market heavily reliant on buyer incentives, and at a time of dollar weakness.
The £534 million charge is believed to cover a write-down of Jaguar's investments and is independent of the cost of job losses.