What is the difference between the John Deere S100 and S110?

Here is how the John Deere S100 and John Deere S110 compare on John Deere's published specifications:

• Wheelbase: John Deere S100 48.9 in. vs John Deere S110 48.9 in.
• Cutting width: John Deere S100 42 in. vs John Deere S110 42 in.