No
To be pedantic :-
No 1 was built with a lower front end and had a bus type interior with 69 seats. Also, the only one with a single engine.
Nos 2 - 4 kept the low front end, and had a buffet counter, two toilets and about 43 seats (?).
Nos 5 - 16 had a different shaped front end, and the exterior doors switched from swing to sliding. The interiors were similar within the series, but nos 10-12 had a toilet in place of a bay of seats (not in the same position as the buffet cars). Nos 5 - 7 might be different as they were built in a different lot, but as far as I am concerned, the differences are a known unknown.
That's all I can think of until someone contradicts me.
Tom