No, its not a patch, but...
From [
www.simracingworld.com]
"James from MotorSportGaming.com, let me know that there has been a minor update on the American version of the Grand Prix 4 official site, GrandPrixGames.com. Basically, most of the sections are now online, with some more flash graphics etc." Basically, everything has been enabled. There isn't much new info, but I took the time to inspect the screenshots of the cars. At least one thing is new. The "strange red bits and peices bug" that was present on half the cars (like the brake discs, and the floor of the prost and the lowest part of the front wing on the maclaren).
I cannot tell if it has been edited away, or if the liveries have been fixed. But it looks real enough. If it is a real bug fix, it proves that IG still has some commitment to the game and its support, and that the rumoured patch does exist and fix problems we complained about.
It's only after we've lost everything, that we are free to do anything.