Had my first proper series of races against the ai today.
I've been running formula a races from the back of a 30 racer grid for months, and worked my way up, to just winning at 90%. Today, same race at Spa, I'm finishing middle of the field.
The AI are very competitive, not giving up on places and fighting back, spent most of the last race at spa fighting for 22ndand that's lowering bqck to 85%! also noticed that in the inevitable bumps they give me i don't fly off the track.
Really massive improvement.
Only negative is that the engineer, who has rarely given me any useful info, now doesn't even mention when I'm out of fuel, always has before.