45 minutes Reims to Paris by TGV?
http://www.bookrags.com/news/new-high-speed-train-to-champagne-moc/
No trains go to CDG from Reims, but the new champagne-Ardennes TGV station is only 5km from Reims, so that is where AR16 teams are very likely to have boarded the TGV direct to CDG. It takes only 30 to 34 minutes because CDG is 16 miles NE of Paris center and Reims is ENE of Paris center
Here is the official current schedule and it is probably quite close to the one in effect in the first week of December:
GV number 2778 2760 5420/1 5486/7 5420/1 5450/1 2662 5470/1 2664 5486/7 5422/3 2672 2784 5424/5
Bar-le-Duc 6.14 . . . . . . . . . . 17.13 .
Vitry-le-François . . . . . . . . . . 17.38 .
Meuse TGV 6.39 7.19 . 9.10 9.50 11.12 . 16.19 . .
Châlons-en- 6.57 17.57
Champagne
Reims . . . . . . . . . . . .
Champagne-
Ardenne TGV 7.20 7.34 8.28 8.57 9.44 10.49 . 11.20 13.47 . 18.19 20.57
Marne-la-Vallée - Disney . 8.57 10.13 11.18 . 11.49
Massy TGV 11.58 12.26 . . . .
Airport CDG-TGV . 8.08 9.27 . . . . 14.19 . . 21.28
Paris Est 8.00 8.19 . . . 10.49 . 12.11 . . 17.20 19.00 .
Days of Non-Op Sun SaSun Sun SaSun 6 NONE 6 NONE 6 M-F NONE NONE NONE Sun