Prolouge obviously. GT5 is coming out light-years after FM3. I actually gave reasons to back my opinion, unlike the other guy who said there was no need for "IMO"
and NO, FM3 had tremendous differences from FM2. It is a whole new game. I have played Forza since the original so I would know. Just a re-hash?... I can tell you have barely played Forza from that statement. The whole Physics engine is different. The steering is more fluid and no longer instant full-lock at the flick of the thumbstick. The collision system is far superior to FM2. Weight and drive type influence collision characteristics. You can flip your car now (realistically, unlike other games) like by getting sideways off the track. Even on the track if you set your suspension up sloppy. you obviously know nothing about game dynamics if you think it is just a re-hash. if anything is a re-hash, it will be the cars in GT. lol
like I said. I play both GT5 Prologue and Forza, and GT5 Prolouge reminds me of the arcade setups you put a Quarter in and grab the steering wheel. Arcade. The driving... even when sliding out of control, is far too smooth and doesnt give you the feeling of what it happening. No feedback from the terrain depending on how the car is setup. You can fine tune in Forza and make the car feel however you want. A sim = realistic. In GT5 Prolouge you can hit huge jumps in exotic cars that are like 2 inches off the ground, yet you can keep driving. How is that realistic? hahahaha. In Forza if you hit a jump like that you would bottom out and total your car, and if damage was off, you would still lose control and wreck. Yet people still say GT is a sim and Forza isnt. I am going to tell you, there is not sim game out there, but they try to make games as close to a sim as possible. its a video game
Like I stated before, I do like GTs counter-steering, they have it dead on, and I cant figure out why Forza doesnt have it polished like GT.
you might wanna go play FM3 for a while then come back. you are like someone who knows nothing about a certain make of car, yet trying to explain how bad that make sucks.
sure Forza has videos of its bugs and retarded s***, but every game does. although a lot of Forza players tune car for wrecking on purpose to get all types of funny s*** to happen. I do that sometimes. look at the "Damage" that will be in GT5. Hits the wall hard and all that happens is the bumper gets a little loose. not to mention just slingshots right around the guardrail and keeps going. You call that a sim? please, quit talking. games are games, not sims. there are cheap, low-budget PC games that are more realistic than console games.
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so NASCAR is the best and I can't wait to see and experience the Grand Turismo 5.
), more production cars, more modification features, etc. 
lol jk. 
