Hmmm...ok it's significant bug time!
Having reached Career Season 2 and signed a full season team contract I completed the 1st event of the season at Misano winning all 4 races (yeah the Pro AI really aren't up to much, even reverse grid isn't a huge challenge).
The weekend review screen correctly showed the 4 wins and 8000 credits awarded. However, the next Team Finances screen showed Total winnings as 0. Clicking to the next screen, the main career screen, no credits had been applied to the player profile. I tried advancing to the next round but still, no credits applied.
This is a game-breaker as the credits have to be used to repair the truck, upgrade performance elements and pay the team their 'profit' for the season. No credits mean none of this is currently possible.
It's a shame because the maintenance of the suspension, turbo, brakes and gearbox looked like a reasonable career setup. From what I can see each element has 4 performance levels - 1 lowest to 4 best and the player can upgrade the part and the reliability of the part. The parts also become worn during races and have to be repaired.
Unfortunately good as all this is, I was able to win the ETRC crown in my first season as a 'rolling weekend' contract driver. I won all events though not every race without any real challenge against the top 'Pro AI' which isn't adjustable. I had hoped a higher AI difficulty might be available for the full season but it seems not.
I've attempted to contact the devs so we'll see what happens next. It'll be a shame if the game ends here due to this bug. I'll give the WTRC trucks a go in the meantime.
That'll teach me for praising a game on release!!