I have just recently learned that the only requirement for the manufacturer's cup is an automaker's Gr.3 and Gr.4 car. However, not all automakers have this, even if we discount stuff like Fittipaldi or Zagato. So I think that the following automakers are the ones that could most likely have reasonable additions to their lineups insofar they could have cars for both Gr.3 and Gr.4: Alpine could have the newer A110 GT4 as a Gr.4 car, but I'm not as sure about what could be done for a Gr.3 car beyond just dressing up the new A110. I had two ideas, however. Either PD could wait until Alpine has a car that'd be better suited to it, or they could simply use the Alpine A110-50, which is a car that's quite similar to the Renault Sport RS01. For Bugatti, all they really need is a Gr.3 car since the Veyron Gr.4 is already around. Perhaps if/when the Chiron is brought to the game, a made-for-game Chiron Gr.3 could be added. Fiat is a bit funny, given that it was just introduced and with the 1960s 500F. But, depending on whether one would consider these following cars as Fiat cars vs. Abarth, I suppose the 500 Abarth Assetto Corse could make for a good Gr.4 or Gr.3 car. Meh, if you ask me, I think Abarth would be better for this overall versus Fiat, especially since there are other cars from across multiple eras - such as various historic race cars - that could be added for Abarth. Meanwhile, I think Fiat may be best as the label that has the older 500 and the late-2000s 500, and anything that's more performance-oriented in any notable regard would be better for Abarth.* However, I could see the Coupe that's already appeared in Gran Turismo make for a good base for a Gr.4 car. The newer Punto could be good, too. KTM is also a bit odd. I'd add the X-Bow Street since it'd be an N200 car to compliment the N300 X-Bow R. But that aside, I'd argue the most obvious potential addition is the X-Bow GT4. But for Gr.3, I'm really not sure, especially since KTM makes nothing else car-wise other than the X-Bow - at least AFAIK. * On a side note, what if various brands - namely in-house tuners/performance labels - could be merged together? Like within the Fiat page, you could also select Abarth, where you could pick from Abarth vehicles. Similarly, Lexus, Daihatsu, Gazoo, and TRD could be under Toyota's page, Nismo under Nissan, AMG (and the A45 AMG, SLS-AMG, AMG GT3, etc) under Mercedes-Benz, SVT under Ford, Quattro under Audi, and so on. However, I think this would be best for a future game rather than GT Sport as we see here. Also, on another note, I wonder if Mini could get a good Gr.4 car in the form of one of the newer, cup racing, JCW-tuned Minis? Hard mode: How would you specifically have as many real-world cars in both of these groups as possible? My thought would be to add the real-world GT4 cars, like for the BMW M4, but also keep the made-for-game Gr.4 cars as race mod options in a future game where the RM game mechanic returns. I would say the same regarding adding the Honda NSX GT3 to be alongside the Honda NSX Gr.3. Otherwise, here were my proposed additions for supplementary Gr.3 cars: Chevrolet - Corvette C7.R GTE Ford - GT LM GTE Honda - NSX GT3, CR-Z Super GT300 Mazda - RX-7 FD Super GT300 Subaru - BR-Z Super GT300, Impreza WRX STI Super GT300 Toyota - Prius Super GT300, 86 Super GT300 For Gr.4 cars, I wonder if other one-make series cars could work? I know Ferrari and Lamborghini have their respective one-make races, for example. And I think it says something - though I'm unsure exactly what - the only real-world racers in Gr.4 seem to be part of one-make series, the TT Cup and Cayman GT4 Clubsport. As for Citroen and Volkswagen, I don't think there's much of any option there. Though for the former, I would like to see made-for-game racers aside from the "GT by Citroen" racers; I could some of the newer cars with the "DS" label working in this regard, especially as a Gr.4 racer. For Volkswagen, I could totally see the XL Sport being outfitted as a Gr.3 racer, or maybe even a Stock Car Brasil racer. (On that note, I think SCB racers could have a lot of potential as Gr.2 cars if not Gr.3, alongside the often-suggested DTM - especially for non-German European automakers like Peugeot.) Finally, I'd love to see these new classes be formed, potentially in a future GT title: -As another thread had in mind, an "N-E" class could be good for electric road cars, especially since most of them seem to have roughly the same sort of power. I'm thinking stuff like the BMW i8, Nissan Leaf, electric-only variants of the Toyota Prius, but even stuff like electric-only variants of stuff like some Porsches, which IIRC are a thing, right? Worst-case scenario, there could be multiple N-E classes each with general BHP designations like the N-series has already. For example, N300-E, N600-E, etc. -A hillclimb/time attack class could be ideal for the Subaru Isle of Man WRX. Think of this as a tarmac-only version of Gr.B, and without the emphasis on modeling itself on the real-world Group B. However, I am unsure if the IoM TT WRX, the newer Volkswagen ID-R, and the Peugeot 208 T16 (the last of which has been confirmed) would be ideal matchups for each other. But, I do think there's something to be said that PD currently has right to Pikes Peak... -A "Gr.D" would be good for the multiple drifting cars I think we'll see by the end of GT Sport's updates - IIRC, a drifting 370Z is planned to be a companion to the drifting BR-Z. There are also many vehicles from the GT series that were used mostly for drifting, like the RX-7 FC with the BP Falken livery. Perhaps drift trials in general could return, too. -A "Gr.1 Classic" potentially could be good for both Ferrari 330 P4s that will be in-game by the time the 2012 Pebble Beach winner is added (each is a notably different chassis), but also the Jaguar XJ13, the Ford GT40 Mk.IV Race Car, the 1969 Ford GT40 Mk.I Race Car, the Alfa Romeo TZ2, Shelby Cobra Daytona Coupe, Chaparral 2D, and the Ferrari 250 GTO. The Ford GT40 Mk.I that's currently in GT Sport is indeed a road-going model, so I'd prefer it to say in N400 - especially if we ultimately get the 1969 Gulf-livery race car that's based on the same car, anyway. Any particular thoughts, @Alpha Cipher?