The additional jobs announced to support Jaguar Land Rover's newest model will see the Halewood workforce reach 4,750 - more than treble the number employed there in 2010.
Jaguar Land Rover CEO, Dr Ralf Speth, said: "The Land Rover Discovery Sport is the next in a line of exciting new products to come from Jaguar Land Rover.
"I am delighted that Halewood - and Liverpool - has been selected for this new investment. It is totally deserved, and strengthens the 'special relationship' that bonds Jaguar Land Rover to this great city."
The Halewood plant, which is already home to the company's fastest-selling model of all time, the Range Rover Evoque, has benefited from a £200m investment to support the introduction of the first member of the all-new Land Rover Discovery family.
This takes the total amount invested in Halewood over the last four years to almost £500m.
The new Land Rover Discovery Sport, which will go on sale in 2015, will be the most versatile and capable vehicle in the compact SUV segment.
It is the first member of an all-new family of Discovery vehicles, inspired by the Discovery Vision Concept, which was spectacularly showcased at the New York International Auto Show.
Richard Else, Jaguar Land Rover Halewood Operations Director, said: "I am delighted to be welcoming the new Land Rover Discovery Sport to Halewood. Its arrival has been a further boost to the region and to our committed and loyal workforce who are all passionate ambassadors for this great company."