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Jaguar Activity Key | 2017 Autoblog Technology of the Year Finalist

In principle, the Jaguar Activity Key is a good idea. It's simple, useful, and relatively inexpensive. Unfortunately, in our testing it was less than reliable. Here's how it's supposed to work: To lock the car, leave your keys and fobs inside the vehicle, and strap the band on your wrist. Then, within 30 seconds, place your banded wrist against the letter J of the Jaguar script on the back tailgate. When you come back, you can unlock the vehicle by pressing the tailgate opening button, then, again within 30 seconds, placing the Activity Key band against the J of the Jaguar script. We chose the Jaguar Activity Key as a finalist for our 2017 Tech of the Year award because it's an uncomplicated device with lots of potential customers. Jaguar says the wristband is "robust and fully waterproof." Swimmers, surfers, kayakers, hikers, and even couples out for a sunny-day picnic could use a feature like this wristband key. Plus, wearables are pretty new as a category in general, and even more so in the automotive space. We didn't go skydiving with it or anything (an activity Jaguar cites as a potential usage case), but we did dunk it in water with no ill effects. While it all sounds good in theory, actually getting the Activity Key to work effectively was unexpectedly difficult, especially when the cameras were rolling. We tried varying the timing between closing the door and using the wristband, as well as between using the tailgate button and the wristband. It worked about half the time, regardless of our process or who was wearing the wristband. Whether our issues with the wristband were due to interference, new-technology teething problems, or just electrical gremlins, the idea of purposely locking the keys inside an automobile without having a foolproof way to unlock it gives us reason to pause. The Activity Key is a $400 standalone option on the 2017 Jaguar F-Pace, but only on Prestige, R-Sport and S models. The least expensive F-Pace with Activity Key costs $51,095.

Jaguar F-Pace V6 reminds us why we love supercharged engines

There are many things we like about our 2018 Jaguar F-Pace long-term car, as well as some things we don't care for, but easily one of the best things about it is the engine. Under the hood is the 380-horsepower supercharged V6 that Jaguar offers on other models. That amount of power would be fun in just about any car with any engine, but there are specific reasons why this particular engine is special, and it's because of that supercharger. Supercharged engines have a very different character than increasingly common turbo engines. One of the most noticeable differences being engine response. Unlike turbo engines, the F-Pace's V6 feels hardwired to your foot. Every extra millimeter of pedal travel yields a slightly greater amount of tug. And the tug is felt immediately. Even the best turbo engines have a hard time recreating this response. The power band is very linear, as well, so you know exactly what you're getting every time you hit the gas. The engine is wonderfully torquey, too. Because the Jaguar's engine uses a classic Roots-type blower, there's a major improvement in low-end torque. This means that our F-Pace has loads of grunt for punting around at low-rpm and can seriously move when tromping on the gas. And because of the near-instant throttle response and linear power band, it doesn't slam you in the back unexpectedly like some turbo engines do. Despite how great these supercharged engines are to experience, we're concerned that supercharged engines like this may disappear in all but ultra-limited production, high-performance cars such as the Chevy Corvette Z06 and Cadillac CTS-V. The reason being that car companies have to keep making cars more fuel efficient and lower emitting. Putting a supercharger on an engine is adding a handicap, since it takes engine power to spin the belt-driven supercharger. And when a turbo, which uses wasted energy from exhaust gas to spin the compressor and built boost, can effectively do the same thing, it's hard to make a case for a supercharger. We won't give up hope completely, though. Mazda is using superchargers on its spark-assisted compression ignition gasoline engines. And while we're not sure how powerful and sporty those will be, Mazda has said that it's going with superchargers for exactly the reasons we like the Jaguar engine: smooth power and fast throttle response.

2018 Jaguar F-Type gets four-cylinder turbo engine option

At the 2017 New York Auto Show, Jaguar has revealed the final piece of the 2018 F-Type puzzle: a four-cylinder entry-level model. It rounds out an expanded lineup of F-Type variants that have all gotten a bit of a facelift and some additional content for 2018, which we told you about back in January. But the little four-cylinder is definitely the biggest surprise. Underhood is the state-of-the-art 2.0-liter, turbocharged, gasoline-fueled Ingenium engine, which is making its way into several Jaguar-Land Rover products for the first time in the 2018 model year. It has a full suite of contemporary technologies, like a variable-lift electrohydraulic valvetrain that eliminates the need for a traditional throttle, an integrated exhaust manifold, and a dual-scroll turbocharger. You might recall that the Ingenium gas engine is replacing an older 2.0-liter turbo four in the XE, and also will show up in the F-Pace and XF. Add the F-Type to this burgeoning list, and don't expect it to stop there. The Range Rover Velar has also been announced for the US with this engine. In the F-Type, the 2.0T makes 296 horsepower and 295 pound-feet of torque, which is higher than some of the other applications for this engine in the US. There's only one powertrain arrangement for the 2.0T in the US – rear-wheel drive and backed up by an eight-speed automatic – but buyers will be able to choose from a coupe or convertible body style. Jaguar claims the 2018 F-Type will scoot to 60 mph in as little as 5.4 seconds. It's also the lightest F-Type, by a smidgen. The 2.0T coupe weighs 3,360 pounds, which is 95 pounds lighter than the next-lightest coupe, the 3,455-pound, 340-horsepower supercharged V6 coupe equipped with a manual (and 117 pounds lighter than that car with an automatic). There's probably a fuel-economy benefit in EPA testing as well, but Jaguar doesn't have EPA numbers yet, so stay tuned on that. Don't forget that the 400 Sport variant will join the 2.0T on the stand. It's a one-year-only special edition model with a supercharged V6 uprated to 400 hp, but sadly there's no manual version on offer. Related Video: Featured Gallery New York Auto Show Jaguar Convertible Coupe Luxury Performance 2017 new york auto show ingenium