We need more Arcade options... I'd like to see an ability to choose your opposition (what car each opponent drives) and a better class system - When you're in a Rally car, I'd want to race against other rally cars, not that HPA Audi TT or Blitz Skyline, Etc. Also, I'm not sure if this is a glitch or not, but I only get the Automatic/Manual Transmission option, no lap count, Fuel/Tire Wear, Traction Control, ABS, Etc. settings before entering the track in arcade mode. To change these settings pre-entry, I either need to change the laps by selecting the lap count in the options menu at the GT homepage, or by going to Split Screen, selecting the lap count and other options after selecting my car, and then going back to Single Player section, and the options will be to where I had set them. I just want 100% options and controllability over EVERY possible function and variable - this would give the game practically infinite variability and difficulty levels for races, and would please the community looking for EXTREMELY hard challenges.
If these changes were added in a "Spec III" disk or something of the sort, it could really help people without an internet connection - they'd get most of or more options than what we've got when we're online now, so they would have a much more exciting game to play. Without any internet connection, they don't get seasonal events, which have been some of the most challenging events in the game so far. (Also no Online Car Dealership and DLC excluding what packs are included with the disk.)