'VW might have to start selling parts of their business'

The emissions-testing scandal at Volkswagen has now widened.

There was a drop in shares in VW after it reported "irregularities" in carbon dioxide emissions levels, which could affect around 800,000 cars in Europe.

Arndt Ellinghorst, who used to work for VW and is now head of automotive research at investment firm Evercore, speaks to the Today programme.