2004 Jaguar S-type Base Sedan 4-door 3.0l on 2040-cars

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Jaguar I-Pace EV has a new pedestrian warning sound: Listen to it here

Jaguar's production of its first electric car means it also has to deal with a problem everybody else has been trying to solve: noise, or rather, the lack thereof. People can hear an engine at low speeds when they're walking along a sidewalk. The same can't be said for silent-operating electric cars. We wrote about Chevrolet's latest solution to the noise problem a few weeks back, and now Jaguar is sharing what it came up with for the I-Pace. The noise it didn't use is almost more interesting than the one it did, though. Jag says its first iteration was meant to be spacecraft/UFO inspired, but apparently it was so convincing that people tended to look up at the sky instead of at the road. Engineers switched it to what seems like a pretty general hum sound for production. Take a listen yourself in the video above — you'll hear the noise at the 40-second mark, and a few other spots after that. The sound is emitted from a speaker behind the grille at speeds up to about 12 mph. It'll change in pitch and volume to correspond to the increasing or decreasing speed of the vehicle — it even changes tone when you shift into reverse to signal a change in direction. Jaguar says the noise is no longer needed at speeds above 12 mph because tire and wind noise become sufficient enough at that speed. Chevy turns the noise off on the Volt at about 20 mph, however, showing that manufacturers haven't really come to a consensus on what should be happening. A U.S. law that hasn't gone into effect yet will ask manufacturers to keep the noise at up to 18.6 mph, though. We happen to be partial to the jaguar growl heard right at the end of the video as a warning sound. That's how you make an entrance with a Jaguar. These kinds of systems are necessary to warn those who might be blind or visually impaired, but distracted walkers are a huge demographic of people needing a warning too. Everybody walks around with their head buried in a phone nowadays, making silent vehicles a hazard of our own habits. Jaguar says it specifically engineered the noise so that it doesn't intrude upon the cabin, so only pedestrians are bothered by the hum when slowly plodding through cities. Jaguar I-Pace pedestrian warning sound View 10 Photos Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Green Jaguar Green Driving Technology Crossover SUV Electric Luxury pedestrian safety jaguar i-pace

The diesel premium in our Jaguar XE quickly pays for itself

Our long-term 2017 Jaguar XE 20d AWD recently returned from a 2,000-mile road trip. My wife and I took a few days to visit her family in Auburn, Alabama, and it was the first real chance anyone has had to stretch the Jaguar's legs outside of Michigan. It was also a good opportunity to see what sort of fuel economy I could wring out of the XE's 2.0-liter turbocharged diesel. The diesel engine was the main reason I chose it over our equally lovely long-term 2017 Audi A4. For me, chasing fuel economy is a great way to stay focused on the road. The XE 20d AWD is rated at 30 city/40 highway and 34 combined. The drive to and from Auburn is almost entirely highway, so I knew matching the highway rating would be easy enough. The XE has a 14.8 gallon tank, so I was looking at a minimum of 600 miles per tank and four fills for the trip, counting the initial pre-departure fill. I had two main concerns: first, this was a new route, so I didn't know how available diesel would be along I-75; second, crossing the Appalachian Mountains was going to severely cut into my overall average. The first worry turned out to be a nonissue, especially as we went further south. Not once was I forced to go from station to station looking for a lone green-handled pump. People in the South love their Cummins, Powerstroke, and Duramax-powered trucks, meaning diesel pumps were plentiful. Rolling up in a Jaguar does garner attention, though. An older gentleman even asked if I knew that I was putting diesel in the car. It seems he didn't have much faith in my reading comprehension skills. The mountains were more of a problem. There was literally no getting around them, but were west of the highest parts, so it could have been worse. The indicated fuel economy dropped by 4 mpg on the way up, from 47 mpg to 43. Still, I managed more than 650 miles from a tank, though I was starting to push my luck. We filled up for the short final leg. By the time we rolled into Auburn, the display indicated 44 mpg – pretty damn good, I'd say. It held there for the entire trip. Calculating the actual mileage revealed the computer was generous by 2 mpg, but that's par for the course. Few automakers display precise numbers. The relative ease of getting this sort of fuel economy was complemented by the price of diesel. At each one of my four stops, diesel cost less than premium, the required fuel in all of the XE's gasoline engines. According to AAA, the same is true nationwide.

How Jaguar optimized the Ingenium gas engine for the F-Type

At the 2017 New York Auto Show, Jaguar showed off the new entry-level F-Type, packing a 2.0-liter, turbocharged, gasoline-fueled inline-four that produces 296 horsepower, which is built in-house in the UK. It's the debut of this branch of the Ingenium engine series, and it's also the top of the Ingenium gas range; most JLR vehicles will offer a less powerful 247-hp version. We caught up with Jaguar's engineers to figure out exactly how this high-output Ingenium engine differs, and what Jaguar had to do to fit it in the F-Type's engine bay. While all Ingenium 2.0-liter gas fours share major architecture – the aluminum block and heads, as well as the bore and stroke – there are some internal differences. The most important are the low-compression pistons, which allow for more boost without detonation. The new compression ratio is 9.5:1, compared to the 10.5:1 ratio in the 247-hp spec engines. To make the most out of more boost, you need new plumbing and a way to get more fuel into the combustion chamber. So Jaguar fitted a larger twin-scroll turbocharger that's unique to this application. It features low-friction ceramic ball bearings – Jaguar says this improves transient response. There are also new fuel injectors and a fuel pump to accommodate the increased demand for gas in the high-output engine. On the back end, there's a unique exhaust system with active flaps to give it a louder bark when called for. Of course, some new hardware and more boost means the various electronic systems that control the engine needed changes. For one, Jaguar's changed the cam timing and valve lift mapping, as well as the ignition timing. The throttle mapping and transmission calibration have also been optimized for the new engine. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. As far as the driver's concerned, the biggest change from the 247-hp engine to the 296-hp one – other than increased scoot – will be where the power peak is. The 296-hp engine makes peak power at a higher point in the rev range, which should reward drivers who generously prod the throttle and hold gears in manual mode. Remember, F-Types equipped with this engine will only be available with an automatic transmission. You should also remember that it's an excellent gearbox overall, with rapid, smooth shift characteristics, if the other 8-speed Jaguars are anything to go by.