You ever heard of Bachmann?
Bachmann has come up with a new model-Thomas the Tank Range. Each range will include Thomas, Percy, James, Gordon, and Toby. All locomotives will have moving eyes while moving throughout the range. 
I'm planning to get the latest character once it gets released
The newest model is scheduled to come out in the fall, just in time for the virtual Christmas market. 
What is your favorite model from that range?
The most popular models are Thomas, Percy, Toby, James, and Emily. 
What is the least sold ones?
Before the year 2000, Bachmann trains had a quality issue with their locomotives and power packs. Models built before 2000 and outside of the Spectrum line were not very durable. 
When is Daisy coming out?
I could not find any information on when Daisey the Diesel Engine is scheduled to come out.