F1i's Nicolas Carpentiers has put together a visual comparative of all the teams 2017 cars, viewed from different angles.
The relative photographic canvas provides a few observations on clear differences and many common ideas.
Mercedes W08 and Toro Rosso's STR12 have not followed the general 'thumb-nose' trend. Both cars also share a more progressive decline of their front-end, probably as a result of exploiting similar front suspension designs with a higher top wishbone.