Yes, it does look old probably due to the drab coloured paint scheme. In white it looks a bit more modern:

Definitely 2007+ for this model in Aus (the design of the cab dates back to 1991).

That was not missed, a comment was asking if it was really a 2007 since it looked old, I thought it was a typo

2007+:

https://www.imcdb.org/vehicle_454044-Kenworth-C-540.html