Honestly I think this is a bad idea because it disrupts the flow of the game. If you're going to win a prize car it'd be much more beneficial to people to earn a car that they can use in the next few events rather than a car for an event they had already won.
We should consider the GT Cafe collections, too. Maybe the game could read your garage and gift you a car that's both related to the motif, and helps to build a collection, too. This could especially be the case for events that also have a corresponding collection, which we can already see with the French Hot Hatch event.
So for example, if you complete that event, and you've bought both the Citroen DS3 and the Peugeot 208 GTI, the game will gift you the Renault Sport model that's remaining in the French Hot Hatch collection. If you've bought all three cars, the prize car becomes one of the cars in the collection gifted at random.
But even if we win a prize car that would mostly be eligible for the event we just finished, it could be nice to have multiples of the same model, as you could have one to leave as stock, and one to modify - and maybe multiple ones to modify with different parts, for different PP limits, and so on.
My idea, however, wouldn't necessarily be to gift a car that's also eligible for the event you just completed, but rather something you might not realize immediately unless you read the flavor text. For example, the Lotus Elise Type 72 could be a prize car for a F1500T-A event, as it was a special Elise model that was made to commemorate Lotus' F1 heritage.
I think it'd be too easy to just win prize cars you can immediately use in the next event, as there'd be less incentive to buy cars, whether it'd be from the dealerships, the UCD, or BA.
I actually gave GT2 screenshot to show how the events should be sorted, all of the event levels (lower, mid, higher levels) are in 1 event menu, like where there in GT2 both of the 295 and 345 hp limit are all in 1 Japan National event.
Yeah, I could dig that - but only for a tiny minority of events, like in GTS. So if there's an event with a pretty broad motif, like the ones for FR/MR/FF/4WD cars, I could see there being multiple levels for that, but not something more specific. That said, I could see there being at least two levels for the J-Sports Meeting if it returns, too. One iteration could feature the JDM sports cars with about 300HP, and a later version could have higher-powered Japanese cars, like the Lexus RC F, the Nissan GT-R, or the second-generation Honda NSX.
One thing I wonder about is whether we should have the Supercar Festival, the Premium Sports Lounge, or both in GT7. If either pops up, I'm hoping more specific car regulations also go with them. Like, I don't want to be able to enter something like a KTM X-Bow into the PSL - I want to only be able to enter seriously bougie cars, like Aston Martins and Ferraris, or the newer BMW M8.
Basically, I'm hoping what we can enter will correspond with our typical opponents for the overwhelming majority of events. But I digress.