I have all the cars, just missing the downlodeable ones. My bobs are poor. But I ain't touching B-Spec again in my life.
You and I got the Platinum Trophy on the same day, but it appears as if you are in Spain, and I am in Texas, so based on the apparent time, you got yours first.
Anyway, I also added a photo showing the status of the three B-Spec Drivers that I used to finish this up. Some folk have reported that they filled up the experience bar before their primary driver had 500 races, and this is most likely true. However, from my own personal experience, it takes at least (exactly!) 500 races of one driver being 'active' in order to fill up his experience bar.
For example, if you created one driver early on, and ran him for 300 races, and if your second driver runs an additional 200 races, that is a total of 500 races. Your first driver only participated in 300 races, but he was 'watching' the next 200 races, for lack of a better term, and thus he reached the pinnacle of 500 races, and you earned your "Air of Experience" Trophy. It is actually that simple, although in reality, it can be quite time consuming. None of my three drivers ever lost a race, and I attribute the fact that so many whiners bash their B-Spec Bobs because of their own inability to think and manage properly.
I will probably still continue to use the B-Spec mode since I intend to continue playing A-Spec, and I will need funds for overhauls, upgrades, etc. on cars that I will be using.
Check it out: PSN: Riata
(Se habla expañol)