It was reported in September that Tony Stark's Acura was just a one-off model and there was no chance of it ever seeing reality. However, a new report unearthed by Jalopnik.com contradicts this. Stemming from a recent Acura dealer meeting, the car could form the basis for the new Honda / Acura NSX and we could be seeing it in concept form next month.
Furthermore, the NSX will come equipped with a hybrid powertrain and it will more than likely have a hard top rather than a fabric soft top.
If the rumours are correct, you will see the car here on WCF during the Detroit Motor Show in January before seeing it on the big screen when The Avengers is released on the 4th of May.