my father inlaws bt50 has ford written on some of the components under the bonnet so there a ford with a landrover motor in them from the discovery td5 days albeit alot better and more powerfull now as far as im aware as for owns or owned landrover at one point.
Jeez Muckinhell, you'll scare people off telling them the Ranger/BT50 engine is out of a Land Rover.........
You're right though, the BT50 components are all emblazoned with FoMoCo (Ford Motor Company). About the only mechanical differences I have heard are that the Ranger has variable output alternator, BT50 doesn't and Ranger owners claim BT50 suspension is a bit firmer.
The Landrover TD5 engine was actually developed by Land Rover just prior to being taken over by BMW and was used in the Defender and Discovery range, most people thought they were actually a BMW engine, they only further developed them.
The engines fitted to the Ranger and BT50 are the Ford Duratorq engines, currently named 'Puma' both in 2.2 and 3.2l. The Duratorq range of engines were developed by Ford back in the Mondeo days and is used in other vehicles such as Ford Transit vans, Jags, London Taxis and the 2.2l is in the current Defender since 2006-7.
No doubt though, now that Tata owns the Jaguar/Land Rover the next generation Defender may have a Tata engine
I find the BT50 tows about 2T of trailer and firewood very nicely and towing the Tvan prior to selling it was a breeze.