DAVOS, Switzerland, Jan 23 (Reuters) - Volkswagen

will need to make additional investments in the

United States to hit its target of doubling market share there,

its CFO Arno Antlitz said on the sidelines of the World Economic

Forum annual meeting in Davos on Thursday.

"We need additional initiatives ... to double market share,

you have to be even more local," Antlitz said when asked whether

Volkswagen plans to expand its plant in Chattanooga, Tennessee.

"We are strong in Europe, but we need to do more

'value-added' in the U.S.," added Antlitz, listing research and

development as a potential area for investment.

"But we have to decide on the project first," he told the

Reuters Global Markets Forum, declining to give further details.

Volkswagen has previously said it aimed to hit 10% market

share in the U.S., a goal investors and analysts are sceptical

the carmaker can achieve in a crowded market. It currently has

around 4% market share, according to Reuters calculations.

The CFO declined to comment on how the carmaker would react

if U.S. President Donald Trump follows through on threats to

impose tariffs on imports from Europe, Mexico and Canada, saying

it was "too early".

Volkswagen's global production chain puts the carmaker

directly in the line of fire for Trump's tariffs. Its Audi and

Porsche brands have no U.S. manufacturing base, its VW passenger

car brand's U.S. sales consist mainly of imports from its

Mexican plant, and its battery cell plant under construction in

Canada was set to deliver batteries to the United States.

The German carmaker plans to bring in range extenders, small

combustion engines which charge an EV battery to extend its

range, into more of its models, Antlitz said, in an attempt to

appeal to customers who are hesitant to make the switch to EVs.

The technology, which is gaining popularity in China, is

already planned for some Scout models.

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