I have now realized that the achievement in Forza 4, called Unicorn Hunter, cannot be obtained because you people at Turn 10 Studios do not host anymore contests or rivals for the gifting of unicorn cars! I have tried getting a unicorn for a long time now, about 2-ish years. I’ve posted photos, liveries, and set lap times on rivals, and I haven’t gotten a single unicorn. I even remember that I beat a Turn 10 developer’s lap time on Bernese Alps with the Mercedes 190E, and I was never gifted a unicorn car! I posted an article on here about that, and you guys didn’t even reply. I just want one last time to get a unicorn car, even so I was promised one but I did not get a unicorn. Please reply to this thread T10! For the community that has stuck with you guys since 2005!
It’s probably not going to happen. The game is 3 and a half years old, and continuing that much support for it is just costly for them. Besides, there have been quite a few forum comps to earn them, some of which only required participation. Also, if you’ve been around since 2005, you would’ve gotten unicorns from your Forza 3 save, or you would’ve participated in a few monthly Rivals that gave away unicorns to every single participant. Just check the unicorn opportunities thread and hope for something to come up again.
Where are these forum competitions that you speak of? And also I did earn a unicorn car, but it was never gifted to me 
EDIT: NVM about the forum competitions and stuff, Turn 10 doesn’t host them anymore 
That means that whoever tried to get a unicorn and they didn’t OR they were too late, they cannot get a unicorn car anymore
Try the Forza 3 game save transfer. You might get them that way still.
Do I need VIP membership on Forza 3 to do that, cuz I know that you get unicorns by that. I don’t have VIP on Forza 3 tho Is there ANY possible way to get a card or something like that?
There are 5 unicorns in FM4 that you can get gifted when you start a new FM4 save - 3 are the unicorns from FM3 (RX-7, Camaro SS and Subaru S204). The other 2 are a Ferrari and a Lamborghini - both of which are part if the VIP pack in FM3 which is no longer available to purchase (and many have reported that the cards that came in the LE no longer work either).
Wow I forgot the Lambo and Ferrari were VIP in Forza 3. My mistake OP
No you don’t need to be vip you just need to have certain cars in your garage that weren’t unicorns in Forza 3 but are in Forza 4(I know the 430s is one of them) and being level 50(I think) to transfer the cars to your Forza 4 game save. BUT AND PLEASE READ THIS, you WILL need to start from scratch on Forza 4 in order to do the transfer so ask yourself if it’s worth it, you’d keep your tunes and paint saves but you’d lose everything else.
Wow that really sucks I was hoping to get AT LEAST one unicorn car in all of Forza, but nope… At least I have one thing to be proud of… Having all of the DLC’s in Forza 2! I know it’s a little surprising, but thanks to my brother who got and LOVED Forza 2 back in 2007 and 2008, I have all of the DLC’s! I think I’m fine not having a unicorn car.