That Toro Rosso

... Absolutely stunning, easily best looking car on the grid so far, and the livery just makes it, refreshing after the design's they sported the last few years.
Like the Haas, looks dramatic, especially liking their shark-fin design, seems to be different to the everybody else's. Hopefully they can add to last year, and not succumb to 'second season syndrome'.
Redbull's interesting, intrigued by their 'vacuum nose'

as someone coined it. However the launch car does look a little conservative for Redbull imo, but as has been stated, I'd imagine that they'd experiment with more aero-features in testing. Much like how Merc are expected to add a shark-fin to their car (which will improve it a lot imo)
Anyway, seeing as everyone is rating the cars on their looks, thought I'd join in
1: Toro Rosso
2: Mclaren
3: Renault
4: Sauber
5: Ferrari
5: Haas
6:
Redbull*
8: Williams
9: Mercedes
10: Force India
Highlighted Redbull, since their car may be subject to quite a lot of change aerodynamically during testing, plus the launch image doesn't exactly reveal much.