Cervelo S2 / S3

Continuing with the aero frames, here are a couple of Cervelos that I find particularly good looking (and to be honest, I am not a big fan of Cervelo in general):

This one is a S2 with internal Shimano Di2 drivetrain, Zipp Vuma Quad cranks, and Easton EC90 Aero tubular wheels.

Here is a S3 with SRAM Red and Zipp 404 tubular wheels (the cable routing into the top tube still bugs me a bit, but that is nitpicking).