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Jaguar may kill supercharged V6 to make way for inline-six

This could be the last year to score a Jaguar with the carmaker's 3.0-liter supercharged V6. Autocar reports that Jaguar deep-sixed the the XE S and XF S in the UK due to poor sales and difficulty coping with European emissions regulation changes taking place this year. The mag expects the XJ and F-Pace to lose the V6, too, but suspects the F-Type might retain the engine. It's possible, however, the bent-six with up to 380 horsepower and 339 pound-feet of torque might finally be retiring for a reason reported on for at least three years: To make way for a 3.0-liter inline-six from the Ingenium line of motors. In 2015, Motor Trend noted the supercharged V6 would die at the end of 2016, succeeded by a "more powerful Ingenium inline-six," likely to be turbocharged. One year later, Car laid out a new family of Ingenium inline-sixes in gasoline and diesel versions. There would be three gas options with 300, 400, and 500 horsepower, plus three diesels with 275, 335, and 400 hp and herds of torque. In Car's report, the engines were meant to be here in 2017. This could be the year it finally happens. A Jaguar spokesman in the UK told Autocar that an uptake of less than 2 percent on the S models, "Coupled with impending emissions regulation changes, it makes sense to remove these variants from sale in the UK." When Jalopnik asked Jaguar U.S. about availability here — we aren't a party to the imminent European emissions changes — the carmaker would only say that the engine remains available in the current XE, XF, XJ, F-Type and F-Pace. No matter the timeline, Jaguar would want a six-cylinder to fill the gap from the 296-hp Ingenium 2.0-liter four-cylinder to the supercharged 5.0-liter V8 that starts at 470 hp. Jaguar expanded an area of its Wolverhampton, UK, engine factory to build the scalable Ingenium line. An inline-six would not only reconnect with Jaguar's past — and the firm's long-hooded cars remain ready to swallow them — the straight-six is lighter, has fewer moving parts, and emits less pollution than the supercharged V6. It is also compatible with front-, rear- and all-wheel drive, longitudinal and transverse mounting, and hybrid applications, so expect to see the motor migrate to the Range Rover, Range Rover Sport, and Land Rover Discovery.

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.

Ian Callum makes the Jaguar C-X75 concept street-legal

Unveiled at the 2010 Paris Motor Show, the Jaguar C-X75 could have been one of the British brand's wildest and coolest models. It received the green light for production, got canned, and resurfaced in the 2015 James Bond movie Spectre before disappearing for good. However, not everyone has forgotten it: Callum, the design firm founded by former Jaguar design boss Ian Callum, has made a C-X75 street-legal. Precisely how Callum's customer ended up with a C-X75 remains a mystery. The example modified is one of the four surviving stunt cars built by Williams Advanced Engineering for Spectre, so it might be the one that auction house RM Sotheby's offered at its Abu Dhabi sale in November 2019. The car was estimated to sell for anywhere between $800,000 and $1.2 million; it ended up not selling during the auction. Regardless, Callum was the right person to take on the Herculean task of making an obscure, experimental supercar street-legal, as he led the team that designed the model. His company made hundreds of small but significant changes including replacing the glass, adding a quieter exhaust with catalytic converters, making tuning changes to the supercharged, 5.0-liter V8, and fitting additional switches inside. Interestingly, the stunt cars were built with foam door mirrors. These had to be replaced with real mirrors fitted with turn signal repeaters. The team also took advantage of the tear-down to make visual improvements, such as reducing and aligning the panel gaps. The C-X75 received a new coat of paint, and engineers made changes to the suspension system — they notably adjusted the ride height. It helps that this version of the C-X75 uses an engine already approved for road use; the V8 has powered the Range Rover, among other cars. Callum's street-legal Jaguar C-X75 will make its public debut at the Bicester Heritage Scramble event held in England on April 21, 2024. Related video: Featured Gallery Ian Callum's street-legal Jaguar C-X75 Aftermarket Jaguar Coupe