If you are on the main Focus page on Ford.com, for whatever reason, no, you won't see the Sonic Blue. I did contact Ford Customer Service to let them know that this color was still on their website and not the Sonic Blue, and they HAVE changed it on the "build" site. If you go to build a Focus, you'll see that Kona Blue has been replaced with Sonic Blue....the same with the Black and the Red.
It's a paint, I know. I ordered the Kona Blue, and was told the color had been replaced with Sonic Blue. I was initially going to go with this, but after hearing it was a big flatter than the other colors, I went with the Sterling Grey instead. I haven't seen a Sonic Blue in person yet, just pictures, but I'm hoping I made the correct decision. I really wanted blue, but grey was my second choice to begin with, so I will live.