2020 BMW 4 Series cabriolet interior spied

The BMW 4 Series convertible has been spied again, this time revealing not only its exterior, but also giving us our first look at its interior. Externally this latest prototype is wearing the same amount of camouflage as earlier vehicles. In terms of proportions, the upcoming 4 Series will stick to a well-worn path with a three-box design and a long bonnet.