Table:
text: GWR railcars
Fleet list
Fleet list
Number_Range Introduced Builder Engine Weight_long_tons Seats Withdrawn Notes
17 1936 Gloucester RCW 2 AEC of hp (kW) long tons (t; short tons) None 1959 Parcels car, capacity long tons (t; short tons)
19–33 1940–41 GWR, Swindon 2 AEC of hp (kW) long tons (t; short tons) 48 1960–62 33 rebuilt in 1954 to replace 37

text: GWR railcars
Fleet list
Fleet list
Number_Range Introduced Builder Engine Weight_long_tons Seats Withdrawn Notes
1 1934 Park Royal 1 AEC of hp (kW) long tons (t; short tons) 69 1955 Prototype railcar
2–4 1934 Park Royal 2 AEC of hp (kW) long tons (t; short tons) 44 1954–1958 Buffet fitted
5–7 1935 Gloucester RCW 2 AEC of hp (kW) long tons (t; short tons) 70 1957–59 Standard single car
8–9, 13–16 1936 Gloucester RCW 2 AEC of hp (kW) long tons (t; short tons) 70 1957–60 9 withdrawn in 1946 after fire
10–12 1936 Gloucester RCW 2 AEC of hp (kW) long tons (t; short tons) 63 1956–57 Lavatory fitted

Question: What is the engine where the manufacturer is Gloucester RCW and which was retired under the GWR railcars in 1959?