Forza 4 makes insanely fun, it has a few improvements and new features, but also some places where you Turn 10 asks how many actually have to have drunk to afford such decisions and Klöpse.
Positives:
The fleet: I do not know whether F3 had more cars and I do not know how many F4 has, but there are definitely more than enough. And as each travels differently, you will also have enough time to spend to master any car. The fleet and the drivability are just fantastic.
AI: Unlike F3 you will not shot at F4 before each curve of a Lewis Hamilton, here the AI reacts definitely smarter and breaks an attack sometimes from when he is not promising. And if you get hit once, you fly not necessarily in a high arc of the track, but you can still correct it by counter-steering. That was in part 3 really bad and a big annoyance, but here it has been well solved.
Difficulty: F4 has the right difficulty level for each skill. And if you walk in danger you can be very dominating either off their own driving aids or increase the enemy AI. Exception because inexplicably the world tour.
Online - rival mode: The classic online races I play rarely, because most players lack the discipline to deny their race without Rempelein. This makes idRegel simply no fun. Much more fun since the times compared to other online drivers or your own car club. Here I could not spend a long time at some point in the top 10% of all cars purely down.
Negatives:
The routes: With a few exceptions, and even the few exceptions sometimes boring test tracks there are the same routes as in Part 3. The scope of the new routes has DLC level, but not a completely new game. And at the routes that have been taken over with in Part 4, then missing sometimes a few variants, eg Rally di Positano, which is represented by only a short distance and not as in F3 with a long stretch. The old routes + 2-3 to take and then the new part to name 4 is simply brazen.
The world tour: The world tour is a competition without rhyme or reason. It differs as well as not of the career in F3, but one has the impression that it is a mix of everything. This includes then the run is not only race, but sometimes car cones on a test track, which is totally unnecessary. As a free bonus mags separately for people whom it likes indeed be great, but not as part of a world tour. The same applies to the 1 vs. 1 Pursuit with traffic as opposed to bowling is a great thing indeed that is also fun, but nevertheless has no business there. But what is really incomprehensible is that the level of computer AI you can not adjust in the world tour in contrast to all other modes. The AI drives like a Sunday drivers, never too fast and slow down well in advance of the curves. If you drive in the sand pit himself once that's no problem, because you probably went out as much lead after the first round have to get the loose 10 seconds ahead. What does turn 10 at such a thing? The world tour is really no challenge, strictly speaking, this is a joke that is not funny though.
Short Race: Why can still make any settings wielang the race should take? How many cars on the track are? Why online travel up to 16 cars, offline route, 12 cars, but usually only 8? Where is the problem to be there to decide how long the player and he wants to play with wievielem? In Forza 3 & 4 you can easily identify a system why does what and why not. It is simply incomprehensible why this great game castrated by such daft decisions.
Because of these negative points I can only give 3 points F4 unfortunately. From pure driving fun and the forth sinds clear 5 points, but the error weigh just too big. The only real reason why one should prefer Forza 4 Forza 3 is the better AI opponent, otherwise I can seriously recommend anyone to buy the expensive F4 wenns the F3 complete for up to 25 can buy.