Okay all the car assignments for Race #1 of the next Sunday event are posted here:
https://www.gtplanet.net/forum/showthread.php?p=6993693#post6993693
Unfortunately the next Sunday event won't take place until:
Sunday 27 May @ 1:30pm PDT / 4:30pm EDT / 9:30pm BST / 10:30pm CEST / 20:30 UTC
Because Sunday 13 May is Mother's Day (here in the U.S. at least).
And the following Sunday I can't host because it's the weekend of my wedding reception.
Thursday event is this Thursday - Event #2 also (like this past Sunday's) World Tour
Thursday 10 May @ 12pm PDT / 3pm EDT / 8pm BST / 9pm CEST / 19:00 UTC
And here's the Race #1 car assignments too:
1. watermelonpunch / wat3rm370n (Race #1 car = #4 Infiniti G35 Coupe '06)
2. IMZIZ / IMZIZ (Race #1 car = #3 Chrysler 300C '05)
3. Racingworld68 / GTP_Racingworld (Race #1 car = #2 Jaguar XK Coupe Luxury '07)
4. mike_5927 / mike 5927 (Race #1 car = #7 Jaguar S-TYPE R '02)
5. jackargent / jackargent (Race #1 car = #5 BMW 135i Coupe '07)
6. Zorrin / Ditquois / (Race #1 car = #1 Alfa Romeo Brera Sky Window 3.2 JTS Q4 '06)
7. dmihaylov / mitaches (Race #1 car = #3 Chrysler 300C '05)
8. GTP_J_Turner / JT977 (Race #1 car = #7 Jaguar S-TYPE R '02)
9. RDAardvark / RDAardvark (Race #1 car = #7 Jaguar S-TYPE R '02)
10. Rosenlundaren / Rosenlundaren (Race #1 car = #7 Jaguar S-TYPE R '02)
11. MSTER232 / MSTER232 (Race #1 car = #7 Jaguar S-TYPE R '02)
12. afbarnes / Grumman_F14 (Race #1 car = #7 Jaguar S-TYPE R '02)
13. flimbo84 / flimbo84 (Race #1 car = #7 Jaguar S-TYPE R '02)
(This is all based on points standings. (Explained in OP.)