Lol, Lamborghini is unoriginal in design? I'm sorry, the Sesto Elemento and Egoista Concept look too much like Toyota Camry's, so I see your point. Why is there an issue with adding more cars?
If they can premiumize it, and make it look good and close to true life detail, I don't see a problem with them adding a Lambo Huracan, although some other sports cars like the P1 and FF and F12 are sadly gone, but the Huracan could possibly make it in.
Its purely up to PD whether or not they want to put it in, anything is possible with time, money, and saying please lol.
I think PD should implement a fan service for putting in cars.
They should do once a month, a voting competition on their website on a car (with exception of Porsche, damn you EA!) that fans nominate and vote for, (a lot of E30 M3 complaints) and the winning vote by the end of the month, PD will go out and either premiumize it if its a standard, or go out and license the vehicles rights and put it in in a week.
I mean, PD rebuilt IRL Mario Andrettis Hudson Hornet, like physically rebuilt it, then they re-rebuilt it digitally in a week. How hard can it be?