I want to build a diarama involving an aircraft and a motor vehicle. If the aircraft is 1/48, what scale does the motor vehicle need to be to maintain scale continuity?
SMH Answers 1/48th is an excellent choice for a diorama as it allows ample room for detail.
To maintain scale accuracy you want to keep both the car and the motor vehicle the sale scale. Tamiya produces a fine selection of 1/48th scale motor vehicles: