Ron,
Check out: 
http://www.carkeys.co.uk/features/in.../2005/6070.asp
Jaguar's V8 Diesel 
 
by David Morgan (11 May 05)
<snip>
This autumn, the current XJ flagship gains the 2.7-litre V6TD engine already used in the latest S-Type and Land Rover's new Discovery and Range Rover Sport.
<snip> 
Although the twin-turbo 206bhp 2.7TD in the S-Type and the 193bhp single turbocharged 2.7TDV6 in Discovery are well-suited to their tasks, there's no denying the market needs a Jaguar/Land Rover TDV8 for prestige XJ models, Ranger Rover and the Sport.
<snip>
http://en.wikipedia.org/wiki/Land_Rover_Discovery
"The engines used in the Discovery 3 were all taken from Land Rover's sister company, Jaguar. A 2.7-litre, 195 horsepower (145 kW) V6 diesel engine (the TdV6) was intended to be the biggest seller in Europe. For the US-market and as the high-performance option elsewhere, a 4.4 litre petrol V8 of 300 horsepower (223 kW) was chosen. A 216 horsepower 4.0-litre sohc V6 petrol engine taken from the Ford stable was available in North America and Australia. Before launch, there were rumours that Land Rover may introduce the diesel unit to the American market, but the use of high-sulphur diesel fuel there, for which the TdV6 is not designed, made this fitment unlikely."
As far as I'm aware, Landrover are still using Jaguar engines and next year the Ford Falcon will have the new Jaguar 5 litre V8 
 
Cheers,
Ron
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