I really don't know but I must say I like a good seven litre six with 6 cm of metal between the cylinders and a block so long you can't reach from front to back. Makers of utes like Ford, Mazda, VW, Isuzu share platforms and play musical chairs so a Ranger was once a BT 50 and now will be an Amarok and the BT50 will be an Isuzu. VW make a 1.8 litre diesel for the Amarok but that was deemed unacceptable for Australia so Ford will use an earlier 3 litre. Toyota make a 2.4 litre for the base level HiLux and many buyers opt for the 2.8 litre. The 3.2 litre five cylinder was a selling point of the BT 50/ Ranger. It is still believed that larger engines cope better with sustained hard work. Don't know if it's true but when you're pulling an overload up an endless grade it's no place to find out. I guess buyers of commercials are not the demographic to take to the concept of small high efficiency engines.