I've seen a lot of people in this thread being concerned about the air control being in the game.
Ironicly, it's been in since GTA SA and was greatly improved with several new tricks in IV. Not in them you say? Play them again and let go off the gas the next time you take off in a car in either of the two. But I'm with you guys, it shouldnt be there when holding the gas, it really screws with the landings when trying to countersteer in preparation for a bad landing.
Also, the line between gripping and sliding is too thin. The traction should "flex" a little more, especially in the sportscars. Going at the speed of sound and suddenly lose control out of nowhere is quite annoying, plus that the "burnout trick" (holding the gas and brake at the same time lets you force a car to rotate a little, makes it more stubborn when hitting fences and such too) along with other tricks previously introduced in IV have like a second or so of delay before doing something. So trying to use various tricks to keep the cars on the road usually end up making it worse or get the control back out of what feels like luck.
Yea I know that if a car starts to slide at high speed there isnt much to do about it, but if I notice that the car only just lost grip and I more or less instantly countersteer and it keeps going... reminds me of when I played DiRT 3 the first time but I later noticed it was because I timed a turn wrong, not that the physics prevented me from doing it at high speed.
I think part of the problem is the fact that they give the player the illusion of always having maximum grip, making all speeds feel the same. I noticed this when I was racing and looked at how fast the bikes were going compared to a sportscar. On a bike it feels like it's going really fast and that it's having insane amounts of grip, but compared to like a 9F they have no more grip than the other cars. In IV one could easily tell the difference between cars and bikes, but still go at equal speeds. Bikes were more responsive but harder to drift compared to the cars that were slightly less responsive but a lot easier to drift. Timing and knowing when to drift and when to keep the grip around turns made a big difference. In V drifting will either be awesome or suicide, rarely just a thing you do because it's cool or actually useful at times.
I'd recommend going for grip-driving in V. Pretending to be a rally driver (like I loved to do in V) isnt that exciting and will usually just cause accidents.
For those interested in messing with the air control stuff in IV, here are a few tricks I found really useful when going around town like a maniac:
Forced rotation: Hold the gas and brake at the same time and turn in either direction. Makes the car more stubborn to rotational changes and can be used both on the ground and in the air to either save a bad drift/loss of control or do fine adjustments before landing. Doing this with trucks grants instant turning instead of having to wait for the weight to shift.
Leaning: For bikes this is obvious, leaning back will help bikes to jump over small edges and objects a lot easier. But you can also do this in cars to help going over stairs or other small edges easier, grants increased jump height and less speed loss. "Leaning" forward will have the opposit effect, increasing the chance(risk?) of crashing instead of jumping a stair or edge.
Banking: Let go off the gas and just turn left of right. This will make the car lean left and right much like a plane. Leaning back and forth will also make the car/bike start flipping in either direction, really helps to make sure cars land better from long or high jumps. Holding the handbrake will both spin and bank the car at the same time, so it kinda works like a double command.
For V that I've figured out so far:
Forced rotation: same but with a second or so of delay. Works wonders when driving FWD cars at high speed, be aware that it will most likely cause the car to start going sideways so be careful.
Leaning: Not sure if this has any effect on cars anymore, really hard to test. I'm guessing it does not work anymore.
Banking: Works the same but no need to let go off the gas. Holding the handbrake makes doing flatspins a lot easier. For anyone who played Burnout Paradise, you know how it's done!
And lastly I'd like to ask you fellow drivers out there, do you find that the cars flip a lot more often in V than in IV from just driving around? I somehow manage to flip my cars really frequently from just cutting corners over curbs and uneven roads, no matter if it's a buggy or sports/muscle car.