Year	Type	Description	Max No. of class
1917	ABCM class	1st / 2nd class motor cars	2
1917	ACM class	1st class motor cars	100
1919	ACD class	1st class driving trailers	13
1919	AT class	1st class trailer cars	16
1919	BCM class	2nd class motor cars	27
1919	BT class	2nd class trailer cars	88
1920	BCD class	2nd class driving trailers	9
1921	D class	Driving trailers	32
1921	M class	Motor cars	145
1921	T class	Trailer cars
1926	ABM class	1st / 2nd class motor cars	7
1931	AM class	1st class motor cars	6
1940	BT class	2nd class trailer cars	29