Random for everyone.
The “Your friend won:” things may not actually show up in your wheelspin. They simply state what your friend won on that wheelspin. Their wheelspin was different than yours.
Out of all the times it told me I could win X car, out of over 200 wheelspins, I maybe got that car around 10-12 times. I’ve gotten a good handful of 2K, 5K, 10K CR prizes for every valuable car I won.
Its rigged for everyone getting 20k or lower spins but its random for those who get 100k spins. I got this factual information from a thread on this forum 
Can I change this? Maybe play the game more and get better spins just like FM6. I don’t want to spend $20 just to get VIP earnings; plus, I hear they didn’t get some of the VIP car sounds right.
I know I may be the only one here with this opinion, but I do think that some of the cars are slightly overpriced. For example I don’t understand why the Lamborghini Veneno is so expensive costing roughly 1.5/2 million more than the other hypercars? I also think 10 million is a bit steep for one car, when you consider how much time you have to put in to earn that amount of money. Just my opinion.