The East of England Ambulance Service, criticised over poor response times, is to take delivery of 120 new vehicles.
The first will go into service in Norfolk, where cover has been described as poor by health watchdogs.
The aim is to have no ambulances over five years old.
More top news
A warm, occasionally sunny day with southwesterly breezes, but thickening cloud and intermittent light rain will spread southwards later
Humid overnight. Warm, sunny spells tomorrow. Intermittent rain later.
A pensioner from Rothwell has been left unable to sleep or leave the house after she was the victim of a callous distraction burglary.