Teams are unveiling there new cars and liveries for the 2017 season and so far McLaran has my vote for the most beautiful. McLaran orange FTW!
http://cdn.images.express.co.uk/img/dynamic/73/590x/McLaren-F1-car-2017-771605.jpg
The Mercedes AMG looks good, there's a clip of it testing I'm not able find but the engine sounded more like the old high pitch scream from the past then the deep guttural sound we've been hearing the past couple years.
Sauber looks good, hopefully they can fill the white space with some sponsors
Force India is meh, and their nose has a giant flat forehead thing going on.
Renault has more black than yellow this year
Williams reveled some pictures, but not the car yet. Actual reveal is slated for the 25th
Toro Rosso, Red Bull & Hass are scheduled to reveal on the 26th with testing at Barcelona starting the next day.
Edit, Forgot Ferrari...it's red.