Back in Closed Beta Test, you could buy your way into the beta by getting a fancy preorder ship, or all of them. WG made a promise that they’d be exclusive for a year, and as of now, it’s been about that long.
On EU and NA (and likely ASIA soon, too) you can now buy the Sims and the Yubari, solo or in a bundle, if you don’t have them already from the preorder itself. In short, the Yubari is plain bad, and the Sims has garbage torpedoes but is a plenty fun gunboat, enough so to be considered the best of the three preorder ships back in CBT.
Wait, there was a third? Something… Russian, right? Ahhhh, forget about it; probably not important anyway.