Bunch of improvements

1) DRS not to be used in the rain as i have seen many teams with DRS open on full wets.
2) Intermediate tyres are off pace in showers. Please may you fix this as Inters are useless at the moment
3) Engine Faults should happen even if a car has over 50%
4) Driver errors should happen like in real life to any teams
5) Upgrade to the engine so you can get better performance out of the car
6) Choose a track to test on as you may not be able to race in the next round
7) LOANS should be available to help teams in debt

The intermediate tyres are not off pace. They work incredibly well in the correct amount of rain.

I'll let somebody else deal with the rest of these suggestions.

1) I somewhat agree, for the sake of realism
2) What Blunion said
3) No.
4) It'd be a cool aspect, but I think it'd drive people away from the game if their driver keeps messing up.
5) I agree with this one, actually.
6) I don't understand what that's supposed to mean. If you're racing at a certain track, why test at another? If you mean for setup runs, it's way too early to be doing setups like that.
7) No.

On the topic of mechanical faults, though, I think it'd be neat to see 'smoke' coming from vehicles if they have mechanical faults in 2D viewer.

1) DRS not to be used in the rain as i have seen many teams with DRS open on full wets.
¿Example in real life? video....
2) Intermediate tyres are off pace in showers. Please may you fix this as Inters are useless at the moment
no agree
3) Engine Faults should happen even if a car has over 50%
interesting
4) Driver errors should happen like in real life to any teams
of course
5) Upgrade to the engine so you can get better performance out of the car
agree
6) Choose a track to test on as you may not be able to race in the next round
Interesting
7) LOANS should be available to help teams in debt
Sounds logical but ¿what happen if you dont pay your loan without making the game bored and frustrating?

Loans. No! I don't think are needed.
If you are stuck for cash, you just need to sell of one your facilities, maybe look for a sponsor that is willing to pay out more, or lay off that driver that's looking crazy amounts of money each race & bring in some new blood.

Test Tracks. Yes! between seasons.
So you can notch up a bit more R&D and some needed pit-stop training before the season starts, maybe test tracks could have an attend or not attend buttons? like someone short of cash isn't going to want to go and would rather save the $95,000 attending fee.

Engine Upgrades & Faults. Yes! within reason.
Each engine manufacture should have a set goals that are to be reached to unlock upgrades & each should have their own upgrade path. We want good close races and not just one engine running away with everything.

Driver Errors. Yes! Should really of been in from the beginning.
I have said before I would like to see drivers abilities increase and decrease based on their performances & experiences on track, this being able to train drivers where you want has to stop. Mangers can suggest to drivers they need to work on this or that. but it's the drivers themselves who pick training not team managers, If you think your driver is slacking off in training you should be able to punish him maybe cut his bonus money or maybe you would rather say here you haven't been at the gym in ages here is $50,000 go workout.

Tyres. short and sweet they all need a revamp.

DRS is wet is up to race control we have it rain sleet or snow