The intent of the LEP is to upgrade the 227 remaining active Challenger 2 tanks, at a projected cost of GBP500 million ($802 million). The primary focus of the LEP is reportedly to address “obsolescence issues” concerning the Challenger 2’s fire control system and electronic architecture in order to keep the remaining active Challenger 2s The Challenger 2 emerged as a heavily redesigned successor to the Challenger 1 tank, which in its only combat—the 1991 Gulf War versus Iraq—performed well, destroying around 300 tanks, and executed the longest-range tank kill in history by destroying a T-55 from 3.17 miles way. But what do we know about the Challenger 2 battle tank? And how will it impact the war? Let’s take a closer look: Challenger 2. As per Forces.net, the Challenger 2 is the British Army’s main battle tank. It is also used by Oman’s royal army. According to the website, the tank was built in the early 80s and 90s as a replacement for the A Challenger tank holds the record for the longest tank-to-tank kill, achieving a destruction at a range of 5.1 km in 1991. It was introduced in Update "Danger Zone" . The Challenger Mk.3 Desert Storm is identical to the Challenger Mk.3 found in the tech tree, the only difference is the visual discrepancy and the fact that it lacks ROMOR ERA in Challenger 3 will be a 24-hour, all-weather tanks. Some of the features that will be built into the vehicle are, Day and Night Commanders Primary Sight. Day and Night Gunners Primary Sight. NATO 120mm smoothbore weapon L55A1, capable of firing NATO ammunition and enhanced ammunition natures. Heavy Armour Automotive Improvement Project, 3rd Improvements to the Challenger 2 will cost £800 million ($1 billion) for all tanks in service, or £5.4 million ($6.6 million) per tank, and will the integrate a new smoothbore cannon to replace the older rifled one, a new digitised turret, improved sights and upgraded protection. It was, at the time, the most expensive tank in the world, costing $9.3 million per vehicle in 2011 dollars. By comparison, a new M-1A2 cost $7.56 million and the Russian T-90 carried a price tag That first of all involved replacing the T-72’s 780-horsepower engine with the British water-cooled CV12 turbocharged diesel engine (used on the Challenger 2 tank) combined with the Allison XTG ciGQfm.