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Jaguar XJ220 leaps into Jay Leno's Garage

Having sadly canceled the C-X75 project and sat out today's hybrid hypercar race, it would be all too easy to forget about Jaguar as a supercar manufacturer altogether. But back in the early '90s, the British automaker didn't just play in the supercar game – it dominated it. The XJ220 was, for a time, the fastest car in the world. Jay Leno pays tribute in this latest video. Originally envisioned with a V12 engine and all-wheel drive, the XJ220 ultimately surfaced with a 3.5-liter twin-turbo V6 driving the rear wheels alone. None of that kept it from eclipsing the top speed achieved by every supercar that came before with a terminal velocity that didn't quite reach the 220 miles per hour initially promised, but came pretty darn close. The disappointment in the change of specification lead some to dismiss the XJ220 as a failure, but it was still the fastest thing on the road until another British supercar (in the form of the McLaren F1) took its place at the pinnacle of automotive bragging rights. Two decades later, Jaguar quite nearly drove down the same road when its initial plans for the C-X75 changed from an experimental turbine powertrain to a multi-charged inline-four. Only this time the Leaping Cat marque didn't put it into production at all, save for a few prototypes and movie props – which is a bit of a shame, and then some. Watching Jay speed down memory lane in the supercar that almost never was, we're glad that Jaguar still built the XJ220, and saddened that it never followed up with another groundbreaking supercar today. Related Video:

2019 Jaguar I-Pace gets official 234-mile range rating

The 2019 Jaguar I-Pace is officially rated to travel as far as 234 miles on a single charge of its battery pack. That's down slightly from the 240 miles initially promised when the slinky electric crossover was first unveiled here in the States. And, while it's roughly equal to the base version of the Tesla Model X, that's not exactly an apples-to-apples comparison. Quoting maximum electric range without considering the capacity of a car's battery pack is the same as quoting the maximum driving range of a gasoline-fueled vehicle without considering how many gallons of gas the tank holds. The I-Pace's battery pack is rated at 90kWh. The Model X's smallest pack is 75kWh. So the Tesla can go about the same total distance as the Jaguar using significantly less energy. It's not just Tesla that boasts greater efficiency figures than the Jaguar. Chevy manages to eke 238 miles out of the Bolt EV's 60kWh battery pack, and Hyundai gets 258 miles from the Kona Electric's 64kWh pack. These vehicles certainly don't all play in the same market segments, and there are a lot of variables to consider. For instance, the Jaguar's 4.5-second 0-60 rating is quicker than the Model X's 4.9-second rating, and its advertised power output of 394 horsepower and 512 pound-feet of torque is higher than Tesla's for the 75D (though Tesla's actual power numbers aren't really advertised in traditional hp and lb-ft figures). But even if cars like the Model X, Chevy Bolt, and Hyundai Kona EV aren't directly comparable across the board, their range and battery capacity figures do help us understand the relative efficiency of each specific vehicle. The efficiency of electric vehicles rated by the EPA is expressed as a MPGe (miles per gallon equivalent) figure. The 2019 Jaguar I-Pace's figures of 80 city, 72 highway, and 76 combined MPGe don't compare favorably with the Tesla Model X's 91 MPGe city, 95 MPGe highway and 93 MPGe combined ratings. It'll be interesting to see how much EV buyers care about the Jaguar's comparatively poor MPGe ratings, but they will definitely have an impact in the real world. In practical terms, what all of this means is that the Jaguar I-Pace is going to use more electricity per mile than the Tesla Model X. And that means it's going to cost more to drive the same distance in the Jag when compared to the Tesla, or just about any other modern long-range EV that's currently on the market. Related Video: This content is hosted by a third party.

Jaguar Land Rover proposes seats that scientifically massage your butt, for your health

Habitually sitting too long can degrade a person's health. Scientific research has proven that dormancy can increase the risk of obesity, diabetes, cardiovascular disease, deep-vein thrombosis, and metabolic syndrome, according to the Harvard Medical School. Although sitting can be avoided in many cases, such as using a standing desk at work, taking a seat is the only option when hopping in the car for a drive. Jaguar Land Rover (JLR) is hoping to address this negative aspect of cars with a new high-tech seat that the company says mimics the act of walking.  JLR calls the concept a shape-shifting, or morphable, seat system, and it is currently in a trial period with Jaguar Land Rover’s Body Interiors Research division. Using actuators built into the seat's foam, the seat will constantly be in motion with micro-adjustments that can be tuned to the needs of different people and body types. JLR believes it has created a system that recreates what is known as pelvic oscillation, a motion that can supposedly trick the brain into thinking the body is walking. In addition to helping to prevent internal health issues, JLR also notes that a sedentary lifestyle can degrade and shorten muscles in the legs, hips, and rear. If these muscles are worked on a regular basis, the chance and risk of injury and back issues could potentially be reduced. The new seats are just one of many car interior technologies JLR has explored. In the past, we've seen tech that tracks brainwaves and heart rates, creates augmented reality, helps prevent motion sickness, and helps stop the spread of germs. They've also taken the time to have an expert demonstrate the perfect seating position. Most of this stuff is experimental for now, but it's possible similar features could eventually trickle down to production cars, in time. See how the seat moves in the video below. Related Video: