Hi VetteDawg,
NP at all hard is, well hard and as you said easy is REALLY easy. I've actually had the game for like best part of two years I've only just passed the hard mode test in a torro rosso to get a race seat (i cant stand doing the test driver thing) as Ardius said lots of practice and also i would say experiment with your car set up it makes a huge difference (thats once you have the seat of course)! OH and on the tests for a seat i find there are certain ones that are nearly impossible the only test I have been able to get a race seat on hard mode from was the Torro Rosso when they offered beat the time over 10 laps at magny cours. The target was a 1.16.6 i think, but to get the race seat still had to do a 1.14.9!!!! What I do is keep starting a career till i get that test offered then save it so I can have a few goes (I know its a bit of a cheat but if you dont want to be a test driver and want to race on hard career its my best advice!)