We note that the Department’s recent experience of upgrading older vehicles with new weapons and turrets has been difficult, resulting in additional costs and delays 54 Obsolescent and outgunned: the British Army’s armoured vehicle capability in delivering the required capability. The Challenger 2 LEP calls for the integration of a new digitised turret and main gun, along with other upgrades, within an existing hull. When making the decision on whether to proceed with the programme, the Department must ensure that it has reduced such risks as far as possible and fully weighed the options between upgrade and an off-the-shelf replacement. The Department should also provide us with a timetable for the programme and explain what alternatives have been considered. We also believe that the Department should examine the possibility of fitting Challenger with an automatic loader.