Lamborghini has released this little teaser ahead of next week’s Geneva Motor Show. Asking people to follow the hashtag #Unica on Twitter, Lamborghini promises that the big reveal will happen on March 6th at 9:00 a.m. (CET). Some rumours suggest it could be the extreme Sesto Elemento model, but – as far as we’re aware – that will only be a track car. So we’ll go with the theory that it’s a Roadster version of the insane Aventador.