5 cars per train. Riders are arranged 2 across in 2 rows for a total of 20 riders per train.
When the Thriller was moved from Six Flags Astroworld to Six Flags Marine World, some track modifications were made by Premier Rides. The most significant was increasing the elevation of the first two loops. The affect of this change would be reducing the Thriller's top speed and lowering the g-forces during the first two loops.