I'm thinking of actually changing what cars I plan to use for the Hypercar Parade and the Special Event, to respectively a Bugatti Chiron and a Mercedes-Benz 190E Evo II that's been swapped. I thought it'd be very appropriate to drive a Bugatti at Le Mans, plus my Chiron in particular is almost entirely stock, barring a power limiter and ballast that I've tinkered with to get it just below 700 PP on Sport Softs. (Though I do wonder if even 600 PP would suffice...)
And while it seems likely I'll be using the Mercedes for the Special Event, I'm also thinking of taking a higher-mileage M3 (E30) Sport Evo that I haven't touched since buying, and giving it both a widebody and an engine swap, both of which would put me back just barely over 200k credits. Though on the other hand, 200k credits saved is 200k credits earned, so I may as well just go with the Mercedes - especially since I definitely recall winning that AMG GT3 engine from a ticket instead of buying it.
Finally, while I still need to do the one remaining race I have for the X2019 Nations Cup bonus menu at Sardegna A before starting the Evolution Meeting menu, I did take my Escudo-swapped Lancer Evolution X, and managed to get it down to just below 600 PP, though I was entirely unable to get it below 550. Still, it sounds fun to use, either for the Evolution Meeting, the WTC 600, or for the Race of Turbo Sportscars.