Grid heritage fumble
Grid 2 has the options of World series and Online racing, there is no Race Day. I've had Grid 1 for years and enjoy the casual custom racing day setup of a discipline, car and track. Furthermore, the interface and menu system in Grid 1 was superb. With Grid 2 the menus are poorly organized with options all over the place. You only have a few cars when you start out your Career, you soon do get to practice with them - on a track that's not good for anything but high speed driving?
As you progress you unlock more cars, more tracks and you're challenged with new racing scenarios. The team talk around you is better than it was in Grid 1 and the World series is more interesting. You can customize the looks of your cars a lot. Which is pointless since you mostly see only the rear end of them anyway. You have no game or car affecting settings other than transmission, difficulty, damage level. If you pay extra for DLC cars and tracks you seem to get more cars to begin with, effectively milking the customer for money to make the game interesting.
Performance wise I find Grid 2 easier and more entertaining than Grid 1. Grid 1 is more simulation, testing you, hence the Assists were a good thing to have. Grid 2 is more arcade like, more straight forward. Here comes the good part: Grid 2's actual racing is well done, the races are exciting as such and the AI does seem better. Unfortunately you're locked in until you progress in your career. You get this Custom Event option where you can pick discipline, level, track and car - as long as the cars are unlocked or you paid extra to actually have more than just a few.
The reasons this game gets 3 stars at all, is because to me the races are really good and I appreciate the AI driving. Additionally, if you spend the time and the DLC money, you seem to get quite the game. Graphics are more crisp than Grid 1, the flow of the driving is real smooth and the sounds are better. The problem is you'll see the same cars and tracks a lot. It seems Grid 2 is aimed towards the Online section where you compete with others and can actually tune your cars? In the single player mode you can change the colors and patterns and wheels on your cars much as you like, but that's it.
Grid 2 is a cosmetic upgrade, a race handling difference, and a pointless successor and alternative to Grid 1. If you have Grid 1 and simply must have Grid 2, wait for a great discount on the game and all the DLC (about a dozen), unless you get Reloaded discounted instead. Grid 2 for the casual gamer is repetative pay to play. For the dedicated gamer I'm sure it's great, eventually.