HOLY **** ALL-NEW ENGINE
In any case
For comparison, our family has a Toyota Land Cruiser 90 series vehicle with a 1KZ-TE engine with intercooler turbo (which is also a 3.0 L diesel engine just like this new engine from Jaguar). Anyhow, this engine is old (first produced around 1997 and during that time, the word "common rail" has not even existed).........however, to us, this engine allowed our LC 90 to really travel fast.
It can reach up to 160 KM/H per hour with not much problem with all four of us on-board (heck, if there was time then it might have been able to reach 180 KM/H if we had more straight roads here). Again, our definition of what is "fast" may vary or that our standards of what is "fast" are different..........but for us, we were amazed at the speed of our old LC 90 and it is still kicking.
For comparison, we have an Isuzu Crosswind (one of them cheap**** AUVs here in the 3rd World) and it has a 2.5 liter diesel engine.........but produces only 88 Horsepower WTFH mated to probably THE WORST automatic transmission in the world. In short, it takes time to even break past 100 KM/H and it really struggles at 120 KM/H. Heck, you'd be lucky if you can even get it to 140 KM/H........but yeah.
In all seriousness though, if ever I were to buy this car with that new 3.0 L AJ-V6D diesel engine, then boy I couldn't imagine the performance difference between it and the 1KZ-TE in our LC 90. I mean, our LC 90 is already fast enough for our family........yet this Jag diesel engine goes beyond that in ALL ASPECTS (considering that they are both 3.0 Liter engines). Wow
With that said, I now have two favorite variants of the Jaguar XF that I'm in love with (as of this moment):
-the new 3.0 Liter Diesel S variant
-the upcoming XF R variant with the rumored 5.0 liter supercharged Petrol/Gasoline engine
Exciting stuff indeed