On the Plus account, after finding the M3 GT3 too slow for Sardegna, I managed to make the 4C Gr.3 work on a 1-stop strategy in 27:20, mostly because Beauvois pitted a third time on lap 14. The no-cash 4-star marathon Wheel of Despair gave me a second GT-R GT500 engine. Too bad the no-contact rule at Tokyo is still in effect.
On the GTP account, I put the stock RM tires back on the 2008 Honda NSX GT500 and lapped everybody except 2nd despite a crash on lap 8 that cost me 12 seconds, The Wheel of Despair wasn't impressed, giving me a full-custom ECU for the 2008 Nissan Fairlady Z off a 3-star ticket. I temporarily gave up on saving for the 7-figure Hagerty's cars and bought enough of the cars currently available eligible for engine swaps to fully tune them with both normal and known S-parts, and with normal and wide bodies. The bad news is, thanks to the expensive December update adding the Ferrari F40, 1988 Lamborghini Countach and 1981 Porsche 911 to the engine swap list, I need around 16,000,000 Cr. to complete just that, and I now have just over 4,000,000 Cr.