BMW SA had been working hard to get a second model to produce at its Rosslyn plant but had "been taken off the bidding table," Guy Kilfoil, a company spokesman, told reporters on Wednesday.
Plans to increase capacity at the plant have been called to a halt as a result.
Talking to the BBC, Bodo Donauer, managing director at BMW South Africa, said the company had been unable to produce 11,000 cars while its workers were striking.
"But more important than these 11,000 cars is the sustainable damage which this [the strike] has made," Mr Donauer said.
"On a very serious note we have stopped all of our future plans to increase capacity in our plant in Rosslyn," he added.
A separate strike by car component manufacturing workers is ongoing.
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