The comparison of GDP with revenue is a comparison of apples with oranges. The GDP is the sum of all values created in an economy, the turnover is just how much

The comparison of GDP with revenue is a comparison of apples with oranges. The GDP is the sum of all values created in an economy, the turnover is just how much stuff was moved around. A better comparison would be GDP vs. value added. For example, Volkswagen has a turnover of 236 billion euros, but the value added is just 25 billion euros.