http://www.fastestcar.com/spy-shots-bentley-continental-gt-hybrid/
On the rear you can see some equipment if you look through the rear window. What it is is not 100% sure, but very likely Bentley engineers are testing new hybrid technology.
On the rear you can see some equipment if you look through the rear window. What it is is not 100% sure, but very likely Bentley engineers are testing new hybrid technology.