It has now been revealed that Rolls-Royce engines will be used for the vehicles.
Defence analyst Nicholas Drummond wrote in a post on Twitter that this was “great” news.
He said: “UK Boxer is coming together nicely.
“Great [to] have Rolls-Royce as part of the team.
The Prime Minister also said: “In these difficult times, our deep defence partnership offers reassurance to our people and the wider world, while also ensuring we are ready to respond to new threats.
“This joint programme will ensure our militaries have state-of-the-art equipment as the invasion of Ukraine shakes the very foundations of European peace and security.”
The Boxer vehicles can be used to transport troops to the frontline.
They are also capable of being “rapidly reconfigured”, according to the Army, to match up to different roles on the battlefield.
The Army said the cost of the vehicles would not be published “for commercially sensitive reasons”.
Production is taking place in Telford, Stockport and Munich.