Here is my opinion comparing both games. First I would like the address the Nurburgring Nord argument. In FM3 my struggle with this track in particular was how they designed it along with the perception of speed within the game made the experience dull compared to gt5. I don't think that the problem was that the track was too wide but rather they made a narrow track and a wider than normal run off area on the sides of the track. This also affected how you view the track when driving because it gives you greater distance to see and so the corners aren't blind and you didn't get the seat of the pants experience and challenge you got from gt5s version. The other thing that helps Gt5 is there are more trees and background foliage so it helps aid this. With Forza 4 IMO this has been somewhat remedied because of the effect of speed being increased in the game. The track itself is just as narrow if not more so in this version and i really like how they added so much in the background. My only gripe with it is that the run off areas are still to wide in some parts of the track. Now that that's out of the way here is my comparison. on a scale of 1 to 10 with 10 being best.
gt5 vs forza 4
1. Graphics:Gt5 gets a 9 forza 4 gets a 9.5. Honestly the deciding factor here is twofold some of gt5s tracks look poorly done to me. They seem to have spent more time on the nurburgring than any other track. Compare the top gear test track and look at the background buildings etc. While Gt5s track looks as good the backgrounds do not IMO. The second thing that gives Forza 4 the edge here IMO is that it seems to be more polished in every aspect but especially in the graphics dept.
2. Sound: Gt5 gets a 7 while Forza 4 IMO gets a 10. This category plays a huge part of teh overall experience of the game. Anyone who has ever visited a race track understands that sound is part of what makes motorsports so great. With Gt5 if you mod your car with the totally customizable transmission it makes every car sound as if it's supercharged while the engine sounds are already OK at best. Some cars sound like weed wackers to me. Tire squeel isn't that convincing to me as well. Forza 4 on the other hand nails the sounds and actually ups the bar with forza 4. The engine sounds are phenomenal, tire squeel is great and even the point at which the breaks lock up or you are at the edge of grip has the tire sounds perfect.
3. Tuning: GT5 gets an 8 while Forza4 gets a 10. This is really where Gt5 has me at a loss. The game is entitled the real race/driving simulator however there are no brake upgrades, Tires are limited in that you cannot increase width or diameter nor is their an option that lets you tune tire pressure, there are no engine or drive train swaps, Aero kits are limited and some tuning options are just plain generic ie engine mods include stage 1-3 and an ecu upgrade only. Forza 4 on the other hand has the nail on the head with a plethora of options for all categories. If you are going to advertise as the real race/ driving simulator please realize that the 3 most important areas of this in real life are BRAKES, TIRES, AND AERO but again this is just my opinion.
4. Painting: This category IMO is a no brainer. GT5 gets a 2 here while forza 4 gets a 10. First GT5 doesn't have a livery editor this should come in some form or another as standard on any racer even if you have preselected liveries for the cars. Next in GT5 why should I have to earn car colors to paint other cars with? If I go to an auto dealer they normally have several factory colors or i can go to a paint shop and pay for whatever colors i want. At the least GT5 should have done this. Forza 4 on the other hand has an incredible livery editor of which i have seen some of the most beautiful paint jobs and replicas made of real cars and in some instances they look better than the real cars. Also with Forza 4 you can now adjust the tints hues etc of any color you pick in the advanced options.
5. Physics: There was a day when GT5s physics were better than forzas but this day has passed. Both games are a tie in this category for me and get a 10. To me you can drive either of these games and be extremely happy with the physics model presented
6. Tracks: Both games have tracks that the other does not and so it's close in this category i have to give my vote to forza because all of their tracks look polished. So my vote here is GT5 gets a 9 vs Forza 4 getting a 9.5. Both games also have the ability to up the track count with dlc so this is why it is close.
7. Weather and types of racing: GT5 shines here with rally, carting and dynamic weather changes as well as night racing so i give it a 10 here and Forza a 8 because forza does have options for races like the auto soccer, tag virus etc and in FM4 although we didn't get weather changes we did get various times of day. We are still lacking a rally option as well.
8. Online community, perks/ contests: The final category i put in a lump sum because it's all tied in. Gt5 gets a 5 in this category whereas Forza gets a 10. I think the problem with PD and Kaz is that he spends more time doing GT academy and being in the lime light than developing GT5 the reason i bring that up is because it is considered one of the perks and selling points of GT5 ie doing the time trials for gt academy quals in real life. You can also take a look at gt4 which was a much more polished game and was developed when there was no GT academy. GT TV was a decent idea but realistically if i want to watch real car videos I will go to youtube or buy the DVDs on my own. The last thing i want to do when playing a racing game is stop to watch car movies. Now with Forza 4 dropping we get GT5 2.0 with a better intro ( uhhhhh he should have spent the time and efforts putting more into the game to make it look like the intro than making another intro), Dlc coming but i doubt that it will be on the scale of Forza 4 with members getting 10 cars a month and more than likely extra tracks. This also brings me to another little detail Gt5 boasted about over 1000 cars but again only 200 were premium with the rest being ports from older gt titles with sub par graphics and no dash view. ( the new dash views in black shadows are horrible and imo a weak attempt at pacifying those who were disappointed by the lack of this option). I always thought that if Gt 5 had more online options and community that they should have done just what Forza is doing. Release a polished game with the 200 or so premium cars and then each month add more premium cars to up the count. Forza has it in my vote again with this category with unicorn cars, car packs dlc, track pack dlc, various types of racing online, Forza 4 brings back the ability to create public and private rooms and even if you are just wanting to hang out and be silly they have auto soccer, tag, virus etc. Also with auction house, car clubs ( which is my favorite perk), storefronts, community contest etc. The partnering up with top gear and auto vista with Jeremy Clarkson giving commentary is pure genius IMO. Forza wins in this category hands down.
These 8 categories are my opinion and score as to which game is better in it's category and why. It is my opinion that Forza 4 trumps GT5 in most areas and is overall a better and more polished product. Also considering that it took PD 6 years to release gt5 and what we got was a lot of empty promises imo vs the shorter time of turn 10 and we got exactly what they said we would my vote goes to Forza 4. the final total scores are.
GT5=7.5 vs Forza 4= 9.6 the scores were gotten by adding up all categories and dividing by 8.