Central Trains
Fleet at start of franchise

Class
Image
Type
Top speed
Top speed
Number
Routes operated
Built
Class
Image
Type
mph
km/h
Number
Routes operated
Built
Class 150 Sprinter
150121 at Kidderminster.JPG
diesel multiple unit
75
120
29× 2 car 9× 3 car
Some Centro services. Dorridge/Shirley/Stratford Upon Avon/Leamington Spa – Worcester/Great Malvern/Hereford.
1984–1987
Class 153 Super Sprinter
153385 at Nottingham.JPG
diesel multiple unit
75
120
21
Lincolnshire and Mid Wales rural services, Stourbridge branch line, Skegness to Crewe & Derby to Matlock and Nottingham to Birmingham New Street/Shrewsbury via Derby
1987–1988
Class 156 Super Sprinter
-
diesel multiple unit
75
120
20
Aberystwyth and Chester to Birmingham New Street, Hereford to Birmingham New Street, Birmingham New Street to Leicester, Nottingham, Lincoln Central & Grimsby Town, Nottingham to Worksop, Crewe to Skegness.
1987–1989
Class 158 Express Sprinter
158751 at Westbury.JPG
diesel multiple unit
90
145
36
Norwich to Liverpool, Stansted to Birmingham, Nottingham to Cardiff, Grimsby to Birmingham, Birmingham to Liverpool
1989–1992
Class 310
-
electric multiple unit
75
121
10
Already being withdrawn at privatisation, remained as backup for the newly introduced Class 323.
1966
Class 312
-
electric multiple units
90
145
4
Already being withdrawn at privatisation, remained as backup for the newly introduced Class 323.
1976
Class 323
-
electric multiple units
90
145
26
Cross City Lines
1992–1993

Question: What exactly happened to Class 310 and Class 312 trains?
Answer: Class 310 and Class 312 trains were in the process of withdrawal at privatisation.