Yeah, always a good excuse. "We didn't have time". 3 years down the road when they release the first DLC pack of six cars we'll see how well that goes over.
Um.. the reason they did not have time, is because the 2009 season they had the NSX, while suddenly they had to get a new car,if they were to continue racing in the league. The HSV came in not long ago, and it's understandable that they have had more important stuff to get done before shipping went out, other than make One car, while the rest of the grid is alread done and tested.
Im in no hurry. I've got 1000+ cars to buy and play with. Im sure I can wait for the HSV, even though I am a hardcore JGTC fan, and even more so a Honda fan. The EK and S2K, yet alone all the NSX's should have my fancy a few months,at least.
In due time,hopefully some DLC will be out. Though, I would rather have them sue their resources on the way to GT6.