I just found this out, but after unlocking the bronze Mechanic perk - stealing 5 cars for the garage - you earn a racecar named, what else, the Altair, with this description:
A top speed that rivals the Aurora matched with smooth cornering has earned it the nickname 'The Flying Eagle'.
For the slow ones out there, that's what Altaïr's name means in Arabic. Stranger even is this is an EA/Pandemic game. Assassin's Creed, as we all know, is a Ubisoft developed and published game. Unless they're buddies with EA, which I highly doubt, they could have pulled a Konami and interjected it for shits and giggles, but, again, I doubt that.