One hundred more temporary workers are set to have their employment terminated at Land Rover's Solihull factory, it has emerged.
The total figure of 550 is 100 more than first anticipated for agency staff and employees on short term contracts.
Notices that their work at the company's Lode Lane factory was finished have gone out to 417 agency staff and 141 short-term contract employees.
Initial totals revealed earlier this week said that 450 staff would stop working a the factory on December 16.
Despite the job losses, the company insists the action was normal practice given the successful launch of new models and the establishment of " optimum" production levels.
This year the Ford-owned facility, which employs 7,200 people, has been booming in an effort to meet opening demand for the eagerly awaited Discovery 3 and Range Rover Sport.
Land Rover spokesman Mark Foster said many of those workers leaving were temporary staff brought in for the "ramp up" phase of the two models.
He said: "These jobs were only going to be temporary and short term while we increased production up to the optimum levels for the launch of our new vehicles. When they have fulfilled this function, they are no longer required. This may sound harsh, but this is common practice.
"There is no threat to the core employment levels, and we are running at full capacity. The business is solid."