|Sebastian Mk III 'Ogier' driving robot|
|Sebastian MK II Vettel unit 'Too lippy.'|
|Sebastian MKI 'Loeb' model. 'Farts smelt of bull's bollocks.'|
|No surname yet. Red Bull's Sebastian MK IV.|
Should it be 'Unstoppable'?
No decision has been taken on the Sebastian MK IV's surname but in the running are thought to be; 'Bullatron 2015,' 'Ogier MK II,' Vettel MK III' or just plain 'MK IV.'