From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of specifications for different vehicle chassis and body types.
| Identifier | ExFiles\Box 97\1\ scan0102 | |
| Date | 25th November 1937 | |
| -4- Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork}29/N.25.11.37 Cont'd.{John DeLooze - Company Secretary} B.III. Engine, 4¼ Wraith III. Wheelbase. 10' 4" Dash to rear axle 89.5" Overslung frame. Height 5' 4½" Headroom 48.000" Bodies: Close Coupled Saloon. B.50. 3½ Litre C.I. Wheelbase 10' 1" " 10' 7" Dash to rear axle 89.5" Overslung frame. Height 5' 4½" Headroom 48.000" Bodies:- Close coupled saloon. Six-light saloon with 6.000 more room in rear compartment. 4¼ Wraith III Wheelbase 10' 4" " 10' 10" Dash to rear axle 89.5" & 95.5" HV. | ||