This year’s “World Mobility Forum” exhibition in Stuttgart, Germany (April 15-18) will be the ocasion on which Jaguar will show off its XJ “Limo Green” hybrid study that was teased for the first time last September.

Making use of Chevy Volt-like hybrid power train, the 2011 XJ-based Limo Green comes with a range extending gasoline engine that was developed in conjunction with Lotus, MIRA and Caparo. The vehicle uses an electric motor producing 145kW and 295 lb-ft of torque for propulsion. A lithium battery pack offers about 30 miles or close to 50 kilometers driving range with a full charge. Once the battery is depleted, a Lotus-developed 1.2-liter three-cylinder gasoline unit kicks-in to produce enough energy to power it for another 970 kilometers.

The XJ Limo Green prototype is said to return a combined fuel economy of 5.0lt/100 km with CO2 emissions of juts 120 g/km.

Even though the study is billed as a one-off concept, it is believed that Jaguar will use the technology on its future production models.

What else could you do to a brand-new luxury sedan, which, on top of all, comes from a respected, high-positioned brand? You make it limited. How? Tuning, baby! And to who else could you confidently hand over a  2011 BMW 7-Series, 2011 Infiniti M / Nissan Fuga (JDM), 2011 Jaguar XJ, Porsche Panamera and the new Rolls Royce, the Ghost, if not to Japanese tuner Wald International? The vaste aggressive tuning kits they have provided so far made the tuner a trustworthy handicrafter.

Unfortunately, I’d say, to my delight, the tuner has released just a teaser shot of each body kit but I can clearly stick to my “aggressive” categorisation regarding Wald International: new bumpers, spoilers, rocker panels, larger alloy wheels and suspension kits.

However, as much as I am a fan of tuning and of Wald’s tuning especially, the Rolls looks kind of…pimpy. But, hey, what do I know…there are a lot of pimps out there willing to get their Swarovsky-encrusted white gloves on one of these babies. Wald, how about some hydraulic suspensions, X-zibit style?

After a pretty good year to Jaguar, with the XK and XF selling well and the new flagship XJ introduced, set to go on sale this year, a sports car – the rumored Jaguar sportscar we have been hearing about for years  – makes its way to production. A sportscar for Jaguar has been rumored throughout the 2000s while the British brand was under Ford’s ownership. Now, under the ownership of India’s Tata Group, the head of the company Ratan Tata is pushing for one to be built.

The kitty will be a two-seater, based on an aluminum monocoque like its larger brother the XK and slated to be a 2012 model. Under the hood,  there will purr a turbocharged V-6 based off of the company’s V-8 architecture.

Can’t wait to see this feline tip-top through the city jungle.

Despite its imminent acquisition by the Indian company Tata Motors, the British manufacturer continues to work on new concepts.

Jaguar has announced it is currently on working on two new concepts, the F-Type, considered by many to be a successor of the popular E-Type and, the XK sedan. The F-Type is a 2-seats, $50.000 sports-car, ready to go into production although the company’s future is still uncertain.

The XK sedan has been as competition for the Aston Martin Rapide, Mercedes Benz CLS and Porsche’s upcoming Panamera. Although such a high-end vehicle might not do very good in the sales department, it might be just what Jaguar needs to reel in some new customers.