That could boost profit margins for BMW, which targets earnings before interest and taxes at 8 to 10 per cent of sales next year and beyond.
It is planning for slower economic growth next year and at the same time is prepared for a potential recession.
Production chief Frank-Peter Arndt said last month that the company was ready to cut output by 20 to 30 per cent if necessary.
BMW will respond to a crisis by tapping central bank reserves through its banking unit. "We are remaining watchful and can react flexibly," said Eichiner.
To reduce its dependence on car demand, BMW is expanding in transport services. It plans a corporate car-sharing service, which will allow companies to provide per-minute car rentals to staff for business and private use. Personal trips would be charged to the employee, offsetting the company's cost for the car.
Programme chief Christian Steiner said the service, which will be available at first in Europe, was being tested in France, Germany and Britain before expansion next year. BMW also has a venture, called DriveNow, providing private car-sharing in Germany.
Growth has slowed for high-end carmakers from the record pace in the first half, as Europe's debt crisis unsettles consumers.
Daimler's Mercedes-Benz division suffered a 9.6 per cent European sales drop to 51,536 last month, according to industry association ACEA.
Rival Audi sold 53,482 vehicles last month in Europe, 2.5 per cent more than the year before, while BMW Group increased sales by 2 per cent to 65,006.