On the Plus account, I ground Sarthe with the Alfa Romeo 155. The (you guessed it) 3-star Wheel of Despair (1st of 3 on this account this month, and pending the GTP run, 2nd of 5) pushed out a racing muffler that I didn't already have.
On the GTP account, I bought some race tires (hard/intermediate/wet) for the older, non-race-car Alpine VGT, found I had to turn the power down to 84 to get it back under 700 PP (thankfully, a full-custom computer came stock), and took it to Sarthe. After setting FM to 2 to make it 4 laps on fuel, I came within a damp track on lap 5 of getting 7 complete laps in under 30 minutes, as I just cleared the Ford chicane as time expired. Maybe if the drivetrain weren't so loose that the revs aren't smooth, it would have gone 8 laps.
The 2nd 3-star Wheel of Despair of the month on this account (making 3 of 6 between the two) puked out the lowest-possible 5,000 Cr. Still, I had enough to get the Audi e-tron VGT. That took me over 600,000 collector points.