Talk:Renault Alpine Celebration (Research & Development)/@comment-29825738-20170206200708/@comment-74.104.185.163-20170207111643

For me, I usually find that when I upgrade a car that needs certain engine cards, whatever pro card box I open has basically everything except that certain card. I wouldn't be surprised if there was some hidden algorithm to why this happens. Let me tell you what happened to me one time:

During the Renault Alpine Celebration R&D (I got the car), I was out of drivetrain cards so I decided I would take a break from the R&D and try to upgrade my 675LT to unlock challenge 15. When I tried to open a random box, instead of giving me V8 engines it gave me 4 C class drivetrains... and when I went back to the R&D event and tried to open another random box, instead of getting V6 I got A class cards and a V8... xD