The BMW 6 Series Convertible has been spotted with its top down while ongoing testing. This time, the door lines look more distinguishable, and two single rear pipes on the rear end — which gives us the confirmation that this model in particular is using a straight-six turbo engine. Previous spy shots have revealed that this will have a slightly larger BMW emblem at the rear and a centrally-mounted brake light.
The BMW 6 Series Convertible is expected to launch in 2011.
Source: Bimmerpost