Versions below 42 have what i want. I use 41 now.

In this version Fastest in the world boost works like Nothing can stop me, holding F9 is increasing speed. I don't like it. Until 2 months ago i was using older ENT version (don't know version number), one press on F9 gave max Fastest in the world boost speed. Which version was that?

I'd like to create race without placing checkpoints. Impromptu Races and Street Racing are something like that, we select only start and end of race, AI can drive well over curves. But i want race in laps with many vehicles - something like Street Races. I would place checkpoints only after every intersection to let AI know where to go.
Can someone create such mod?

One of problems for me is that AI always drives slow over intersections in my races when a curve is shortly after intersection.

Yeah, a good idea. A mafia selling many things e. g. drugs, weapons, settlements etc. Military (like gang wars) and economically (changing prices) fighting other mafias. A goal is to become monopole.
I'd really like this.

@Mcarden2006 i'm even worse than you, i'd like to have GTA San Andreas graphics in GTA V

Even if i drive a tank over a a car many times, it doesn't start burning and it doesn't explode.
The sane with driving Jobuilt Phantom Wedge. I hit a car which flies high but when drops down, it doesn't explode.
Or if i select no gravity for NPC vehicles and then turn this off, vehicles drop down but they are all "alive".
If vehicle damage in trainer if set to 500, it works only when shooting cars. Hitting, driving over, falling down isn't related to vehicle damage.
That's why i beg you to either add option for faster vehicles burning/exploding or to modify vehicle damage function.
Thanks.