In the 1960s series I have noticed that at 100% AI strength the AI will post lap times much faster than historical lap times. For example they will get around 3:20 to 3:22 at Spa in dry conditions. This is 8 seconds faster than the times posted at the real Spa F1 GP in 1967 and 1968, the era the 60s F1 cars are based on.
When adjusted to 95% AI strength (the default) the AI are getting 3:27 to 3:29 at the same track. I assumed that 100% would equal normal real life times, instead I find that the default 95% is realistic. For ages I was assuming that my 3:26 was 5 seconds of the real pace of F1 1968 times. It turns out I was 2 seconds faster.
Now this might sound like a trivial request, after all 95% is the default setting but I feel that the 95% setting should be renamed to 100% for logical reasons. When I read 100% in this context I take that to mean actual real life lap times and speeds.
I just think it would make things easier to understand when setting up races.