We make it a rule to be sceptical when it comes to so-called scoops from commercial email addresses, but we reckon that Sony may be up to something with this ‘Hadouken Cabs’ teaser trailer. Overnight, we were contacted by a strange Gmail account, which encouraged us to not just call a cab, but to call a Hadouken Cab. “[We’ve been] knocking out the competition since 1987,” the message added, concluding with the PlayStation 4 hashtag '#4thePlayers'.

A link in the email encouraged us to download the teaser trailer embedded below, which includes a number of Street Fighter sound effects. Perhaps most interesting, though, is the appearance of the DualShock 4 controller and PlayStation face buttons. Alas, the fine folks over at VG247 were more thorough than us, also spotting a URL resolving at HadoukenCabs.com. That includes a car with a PlayStation-themed license plate, and an opportunity to chat to an operator.

But what does it all mean? Our best guess is that Capcom has decided to port Ultra Street Fighter IV to the upcoming console, and that it will be revealed during next week’s Spike TV pre-launch livestream. Producer Yoshinori Ono noted earlier in the year that there were “no plans” to bring the re-release to next generation consoles, but Sony seems eager to secure fighters for its futuristic format, given that Injustice: Gods Among Us – Ultimate Edition is also coming to its latest console.

Check out the trailer embedded below, and feel free to happen upon your own theories in the comments section. Interesting, huh?

Update: It looks like this is happening all over Europe. Spanish journalists are reporting that they've been directed towards Maestro Shaval's website, which includes a strange video starring a man with an impressive beard and a PS4 preparation survey.

[via hadoukencabs.com, vg247.com]