We probably would have already released the new MX-5 but once the car was about 90% done in the real world they tried some different things on the racing version for last 10% so we have been stuck at 90% as well as that was worked out. Seems they have finalized it and we need to get that last detail and finish it as well. We even had to wait on sound recording and setting that up because that was changing.
Shooting for the new McLaren F1 car in December build in just about 3 weeks complete with DRS and Overtake. Complicated but cool car! Also working on having multiple tires like the real world. Not sure that part will be in build.
The Renault 2.0, Audi and Mercedes GT3 are all in full production and would not be surprised if all 4 including the MX-5 in the march build. Aside from the MX-5, the Renault is the furthest along. The Audi right now is further along than the Mercedes.