1991 Jaguar Xjs Classic Collection V12 Convertible Southern 49k Miles Rare on 2040-cars

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Jay Leno hits the road in a 1951 Jaguar XK 120 Hot Rod

The 1951 Jaguar XK120 featured in this episode of Jay Leno's Garage might look vaguely like a classic Jag roadster at first, but underneath this cat is something completely different. It was built by Leno's buddy Jason Len of XK's Unlimited when he grew tired of keeping these convertibles stock, and this aluminum-bodied beast was the result. Practically the only major Jaguar part left is the engine. It's a tuned 3.8-liter inline six from an E-Type with Weber carbs that makes an estimated 300 horsepower out of some gorgeous side-exit exhausts. The mill is backed up to a BorgWarner five-speed manual. However, the big surprise is the chassis. In place of Jag's original solution, Len has a custom tubular space frame that he claims sheds some 1,000 pounds over the stock example. There are still some classic Jaguar touches left, though, such as the fin over the driver's head that is reminiscent of the D-Type, and both the wheels and gauges are replicas based on that classic racer. Of course the best part is watching Jay drive this Jag hot rod. This big cat really knows how to purr.

Jaguar Land Rover's latest tech makes roads safer for bikes [w/video]

Safety in automobiles isn't just about protecting the occupants anymore. It's about protecting pedestrians who might be struck by an automobile, and as Jaguar Land Rover is demonstrating, it's about protecting cyclists as well. The latest experimental safety system from the British automaker is called Bike Sense, and it builds upon technologies the company has demonstrated recently, taking them a step further to make the road safer for those riding on two wheels. The system uses a combination of colors, sounds and vibrations to alert the driver of a potential hazard that might have otherwise gone unnoticed. Demonstrated on an XJ sedan, the system identifies nearby two-wheeled vehicles as pedal-powered or motorized, and alerts the driver accordingly. If a cycle is passing a the vehicle's blind spot, the top of the seat will vibrate to virtually "tap" the driver on the left or right shoulder, prompting him or her to look over that shoulder for the hazard. LEDs inside the cabin will then illuminate amber to red in the direction that the bike is passing. The system will even chime a bicycle bell or motorcycle horn as the two-wheeled vehicle approaches, and vibrate or stiffen the accelerator pedal if the driver keeps moving towards the obstacle. And if an occupant of the parked vehicle starts to open the door into the path of moving vehicle, it'll flash a light, sound an alarm and even vibrate the door handle to warn the occupant of the oncoming hazard. We could imagine the alerts getting a little distracting, but JLR says the system is designed to prioritize potential hazards when their are groups of pedestrians, bicyclists and/or motorcycle riders on a busy urban street. This is, of course, just the latest in a long string of new systems JLR has under development, following such technologies as the Transparent Bonnet, the Smart Assistant, the Virtual Windscreen for track sessions and the 360 Virtual Urban Windscreen for city driving. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Is the Jaguar XFR-S really worth $17k more than the XFR? [w/poll]

Adding performance to a car is rarely cheap - whether you're looking to do it yourself or rely on the factory to do it for you. In the case of the new Jaguar XFR-S, the cost differential over an already-impressive (and somewhat expensive) XFR is a stout $16,800. Auto Express recently got a hold of both cars to see whether that price pays off on the track.
For that price, Jaguar gives the XFR-S an extra 40 horsepower and 41 pound-feet of torque - for a total of 550 hp and 502 lb-ft - to go with a stiffer suspension, beefed-up differential and, of course, meaner styling. We don't want to ruin the results of the AE video, but right off the bat, the host says that you can feel the extra power of the XFR-S, but that it's not a "night-and-day difference."
Scroll down to see what happens when two high-powered Jags go head-to-head on a track. And then be sure to let us know whether or not you think the added money is worth it for the XFR-S in the completely informal poll below.