I just picked up forza last night and heres my opinion on the matter
Having drivin an S14 with 300hp in both GT4 and Forza, along with real life I think i can give some decent input.
Engine Sound: Forza is closer but neither capture that dirty ripping sound the SR has that we have all come to love
Acceleration: Forza is way more accurate, you get loose in first gear and spin second with the stock tires (hold on with slicks though). GT4 is fine except for the fact that the car just goes straight all the time.
Braking: Forza is reallllll. GT4 is nottttttt. This is only because of the ABS though. Turn and brake in forza and you go straight. Lift off the brakes and the car skips forward and then turns if you’re turned full, or catches right away if you’re turned teh right amount. This is real.
Cornering: Forza is very accurate in my opinion EXCEPT when you go from one direction to another forza seems to forget about the cars built up momentum. If you’re drifting one way and you throw the car the other it doesn’t throw as hard as it should, unlike GT4 which throws unrealistically hard. Throwing the car into a drift is not accurate nor realistic in either game. Both games cause the car to understeer. Trail braking does not cause the car to get loose as it does in real life in either GT4 or Forza. When you get loose in a corner and you countersteer just a bit it causes the car to go off line just like in real life, you get a bit wide. In GT4 the rear tends to step out but the feeling is that the front wheels are still tracking on the same general path, but in forza you just go out out out and not forward. Just like real life.
Other impressions: Like most xbox games forza looks too arcadish. The maps seem too small to be taken seriously, the gauges look bulgy and fake, the turbo spool is innacurate and veryslow, the sound of hitting walls is tacky. Going into the dirt in forza slows you down a bit more than real life, but then again GT4 lets you keep going and going. I like how in forza you can benchmark your car so you can see its performanc abilities each time you cahnge the setup without having to drive the car, and how you can adjust the cars setup WHILE DRIVING in the puase menu (i’m guessing only in practice, haven’t tried while racing). The graphics both ahve ups and downs. GT4 has a more realistic look to it, however the resolution simply isn’t there, you can see the choppyness on the car models etc. Forza is very smooth, the wheel models are AMAZING, but the headlights look fake and weird, and a lot of the environments simply look toyish and fake.
GT4 is more fun because its easier, but forza is a better simulator. Neither come close to the realism of live for speed though. The only problem with live for speed is they don’t offer tires with high enough grip.
They are both awesome games i’m just a nazi.
Still think live for speed is the only game that can actually teach you drifting proporly. Forza and GT4 will teach you how to race fast, forza esspecially because of the brakes and the exit corner accel
