Of all places, some of the big box stores have decent photos of recent sets, like Walmart with the Star Trek set. Actually the photos look like they came all from Lionel. If I had to guess, I would think the cars in the 2020 and 2021 sets are the same, the difference being just the Bluetooth 5.0 in the engine.

2023130 Star Trek Set

Yup, Walmart had images of the individual Star Trek items which have the SKU numbers on the cars

Thanks for the heads up.

Lionel is not so forthcoming on their own.

Bob Mintz