When the Doctor and Jo originally dematerialized in Part 1, the Brigadier walked over to the spot the TARDIS originally occupied and said, "Doctor, come back at once." But just before they rematerialized in Part 6 and the Brigadier said "Doctor, come back at once" (implying that practically no time had passed), he was standing in the doorway.
The jeep occupied by the Doctor & the Master is on it's side when they abandon it but when the Master escapes during the gunfight, followed closely by the Doctor & Jo, both jeeps are clearly upright & the one overturned by the boulder is in working order.