How would FM6 be able to tell how many cars you have in your garage for FM3 & FM4? With my saves for those games as long gone as my 360 is, it makes me wonder if there is some sort of information on their servers somewhere, this wasn’t made real clear and I am curious about it.
EDIT: Thanks to the Turn10 Staff who have replied to this thread and given your help. 
As far as I know the information is stored on the servers so it shouldn’t be an issue.
My guess on that would be is that it only works for those of us brave enough to have a game save on the cloud for the 360. So no cloud save no rewards.
Just a guess so take with entire salt shaker of slat
It’s possible that it’s only based on stats. These still exist as they do for all Forzas. I’m not sure they’d know what cars you had in your garage for 3 but they’d know what cars you unlocked. Just in case though, I’ll have to spend my squillion FM5 credits on some nice motors
This word made my day. Honestly, words cannot describe how much I love you for this.
How?
The selected stats saved for each game as shown in your forza rewards tier breakdown.
huh, I never really went into all that, I just redeem my rewards and move on lol.
Lol.
I’m guessing the information pulled is more detailed than what we actually see on the screen though. I think on my FM4 breakdown it says 100+ cars owned (or maybe it’s 50+, I can’t remember) but T10 probably knows the exact figure.
I’m not sure if I want the bonus credits though for 300+ cars owned. I have a feeling credits will be useless again.
Swerve FTW!
Credits are never useless when you’re a starting out painter…
Later on you’re tripping over them though…
I’m also interested in whether or not three identical Honda Civics (just for example) count towards the amount of cars you have. Are those going to be consider three different cars so it is +3 cars in your garage or just +1? Let’s say you have 301 cars in your garage and there is a couple of duplicates so do you get 5 million or 1 million, because if those duplicates are counted as 1 car only then you can pretty easily end up in 200+ car garage range.
I know that in FH1 they knew what was in your garage without needing cloud saves.
I do hope so as I just lost my game save and am franticly trying to earn cars again.
Hopefullly prior to release there will be a website we can go to and verify what goodies we’re going to get on launch.
When i opened the Forza hub on xbox one it told me some stuff that was waiting for me when i got fm6.
Loyalty Rewards breakdown is here.
You can see what we expect to send out at a glance in the Forza Hub
-wp
I’m not sure how accurate the Forza Hub is, as I know I have 300+ cars in FM5 but the hub says I will be getting 4.1m CR, which is too low as should be 5m CR for FM5 plus however many CR from my garages in other Forza games…
Your hub is already updated for FM6? Or are you talking about 4.1M credits for CURRENT games like FM5, FH2 and FM4 combined due to your current Tier?
In Forza Hub is shows what rewards we are entitled to in FM6, so far I have 11 cars and 4.1m CR waiting for Sept 15th, rewards for other Forza games combined is over 67m CR so not that either 
Those 4.1 million might just be a placeholder. I have the same number even though I should’ve had 3.2 million to begin with and made sure yesterday to buy enough cars for 25 million CR yesterday. But the 4.1 stayed.