Don't buy this game unless your a fan of every aspect of racing and cars.

Racing games are pretty much all I play anymore.
I enjoy racing in real life but that's not always an option.
I also don't play my xbox enough to justify having an xbox live account. That being said, my favorite part of Forza 4 is the rivals option. You can take time attacks and set times compared to the times that your friends have made regardless of your internet connection speed.
I bought Forza4 for myself and realized this, so the copy I bought from ebay was sent to my brother in the next state as a wedding present. We actually used to do this same thing with Forza 2 on certain time attacks, but this one shows your nearest rival and tells you when you've beaten their time, and notifies them the next time they get online, so I don't have to text him at 3am with a picture of my latest hotlap time.
Of course I could go on about how pretty the game is but I'm not a graphics hound, and I don't have a large tv. I could go on about how well the game plays and how realistic it is, but it's still just a game, and doesn't compare to real life even with the cheap microsoft wheel I have for playing it. I do especially like the heart wrenching first play film that jeremy clarkson narrates, but that's not what makes this game good.
This game has nearly unlimited potential as far as customizing and multiplayer, and it's a good challenge on single player if you put it on professional mode. Then when you think you've reached your limit, you can start tuning setups and trade those. However, the ratings for car performance keeps players from winning just by throwing money at their car.
Microsoft packaged the game with an install disk for all that content, but they were also gracious enough to give a bit of free dlc to players. There is still plenty of dlc to buy but it makes me feel good to get something free.
I've played many racing games in my 20+ years of videogames, and this is one of my favorites. Gran Turismo 5 is good for the playstation, but the way the buttons on the PS3 controller are made, it's rather difficult to control the throttle, although I prefer the ps3 stick over xbox. I've actually played and completed Gran Turismo 3 and 4, so you could go so far as to say that I'm a fan of that series, but I'd still prefer Forza most days of the week.
I was a little disappointed to see that there were still no Formula 1 cars in Forza. It seems as though the only modern outside reference in the game is Top Gear, which also made an appearance on Gran Turismo, but they still have Formula Cars for some reason. There are NASCAR style stock cars, but I've yet to see a NASCAR reference in the game aside from Indianapolis Motor speedway. It could be that I've just not encountered or unlocked these cars yet, but I didn't see them when I was looking at the car lineup.

Get the game, simple as that!!

Love this game. Only racing game out right now that does not get boring after a couple of races. The graphics, sounds and all out realism makes you shiver with excitement. Make sure to get the motorsports 4 and not essential edition as essential does not come with the second disc, which has hundreds of more cars. You will also enjoy the many online features like drag racing, tag , and soccer. Playing tag with high performance cars, well that itself should convince you to get this game. Plus did i mention the car list is endless. That is one part I disliked. Having too many car options for each class. The upgrades options covers everything to the tire thread. Plus dont forget performance tuning. Plus you can do engine swaps. My first motor swap was putting a GTR skyline motor in a 1969 fairlady z.

More than just a Video Game.

FM4 is very awe-inspiring at the level of content delivered. This product just gets better after each release. I love the realism that is brought, and the feel of driving. This game is a definite improvement compared to FM2, and with much better content and experience than in FM3.
Overall Forza is just more real than the other auto games, and that's what makes this game worth every penny, time, and effort.
On note: I especially loved the TopGear tracks introduced.
Not to mention the Autovista is a beautiful idea.

Keep up the great work!

Amazing!

The best original sit down and race game ever, I wouldn't doubt the the next forza would have a model of car in nearly every year in the world. And customization is the uptime racers dream in a game. 5 stars and kudos to turn 10!

I would buy it over again willing to pay double.

This is an excellent rendition of a racing simulation game. IMHO it replicates the driving dynamics of many of the vehicles I have had the pleasure (or not so much) of driving. My son's understanding of the physics one encounters behind the wheel has improved tremendously with this game. I feel that when he is licensed he will be a better driver for it. We use a Mad Catz 2 wheel and pedals and hope to upgrade soon to a wheel with more feedback. Very realistic. Outstanding graphics and overall experience.