When Jaguar launched the current-generation XK in all its feline ferocity, it reportedly promised that the car would only be offered with gasoline engines. But that was a couple of years ago, around the same time that Audi began to dominate Le Mans racing with its R10 TDI, when BMW put the 3-liter turbodiesel into the 6 Series, but more importantly, before the current fuel crunch made consumers reexamine the prospect of driving a diesel sportscar.

That’s why reports now suggest that Jaguar is preparing a diesel version of the XK. Based on the 2.7-liter V6 turbodiesel used in its sedans, the XK is tipped to receive a more powerful 3-liter version with 250 hp – still short of the BMW 635d’s 290, but still capable of returning over 30 mpg with torque to spare. Whether the diesel XK would make it to the American market remains doubtful, however.

The upcoming Transformers sequel, which is known as Revenge of the Fallen, is shaping up to be chock-full of new characters and, therefore, vehicles. The GM love fest continues with new cast members like the Chevy Beat and Trax siblings, a mystery Corvette and even the Chevy Volt. With all of these new additions, along with what appears to be the entire cast from the first edition, keeping up is proving a bit difficult. With that in mind, those of you who don’t mind viewing a few spoilers before actually seeing the flick, check out the ongoing and recently updated character guide over at FiLM Grenade.

Still can’t get enough Transformers action? Check out some conceptual art done by Tim Flattery. Though these particular drawings were made for the first film, the characters didn’t make it into the movie. Some sources are claiming that we could see them appear in the upcoming sequel. Thanks for the tips, 04volk and 94 Taurus Owner!