It always felt little odd whenever a diesel-powered Cayenne sidled up to you next to a stoplight. A Porsche that builds SUVs, we used to mull, and diesels, no less!

The public’s discomfort with a German sports car maker entering the utility vehicle field is long gone, and we can now say the same for Porsche’s short-lived dalliance with diesels. The automaker has stated it’s pulling its last remaining oil-burning models off the market.

A new Porsche is born, cleaner, but perhaps no purer. (Read More…)

One of the red-circled events on my calendar every year is the Detroit Autorama, arguably the world’s best custom car and hot rod show. As is fitting for an event in the Motor City, the vehicles competing for the Autorama’s top prize, the Ridler Award, must actually function, they have to be driven onto the show floor under their own power, and the hoods are up during judging so the judges can evaluate the engine compartment.

While that makes for fair competition, it also makes for less-than-ideal photography of the cars’ styling. No kid sitting in seventh-grade study hall ever drew a hot car with the hood up.

It might surprise you, then, that I was excited to find out about the Engines Exposed exhibit running until the end of February at the Henry Ford Museum’s Driving America display. (Read More…)

One thing is clear — with variable compression comes a newfound lack of thirst.

Infiniti’s previous midsize QX50 crossover didn’t astound in its thrift, garnering 20 miles per gallon on the EPA combined cycle. The move to a new, front-drive platform and addition of a years-in-the-making gasoline engine for 2019 has done wonders for the model’s drinking habit, however, and Infiniti engineers pegged the MPG figures right on the nose.

With the 2019 QX50‘s fuel economy now confirmed by the EPA, it begs the question: just how much of the model’s thriftiness can the variable compression engine take credit for? (Read More…)

We explored the Fiat brand’s troubles earlier this week, then put you in the driver’s seat and asked what you’d like to see done about it. Well, there’s no red telephone linking our comments section with Fiat Chrysler Automobiles HQ, so suffice it to say many of your suggestions probably fell on deaf ears up in Auburn Hills.

However, Fiat does have a plan to stimulate some renewed interest in its flagging 500 city car, but it’s not through a shocking redesign or by positioning the tiny vehicle as a trail-conquering off-roader. Up until now, non-Abarth 500s have, to put it mildly, underwhelmed from a performance standpoint. Double-digit torque figures are a rarity these days, but they’ve just become rarer. (Read More…)

Iron or aluminum? For cylinder head construction, that’s the basic menu we’ve long grown used to. There’s advantages and drawbacks to both. Aluminum is lighter, but more prone to warping. Iron is stronger but heavier, with low thermal conductivity. Both materials are prone to the ups and downs of the commodities market, frustrating beancounters working at automakers everywhere.

In a U.S. patent application filed in October and published today, Ford Motor Company’s global tech division proposes something new: a cylinder head containing a barest minimum of metal. Called the Hybrid Composite Cylinder Head, most of the component’s bulk is made up of polymer composite, not aluminum or iron. (Read More…)

(In the interest of providing readers with all the news they can use, we sometimes tap sister publications when an article attracts our interest. In this piece by Matthew Guy, published by Off-Road.com, our in-house truck lover tries to find out when Nissan’s promised six-cylinder Titan will finally make its appearance.

Nissan has been doing a good job getting back into the full-sized truck game, rolling out various cab and bed configurations for the Titan along with an array of trim levels. There’s still one thing missing, though – a V6 engine.

Right now, truck customers walking into a Nissan showroom are limited to a single engine in the half-ton Titan. The 5.6-liter Endurance V8 is a great motor, cranking out nearly 400 horsepower and an equal amount of torque and allowing drivers to tow nearly 10,000 lbs, but not everyone needs that hauling capability. (Read More…)

In an era where just about every automaker is talking about electrification of its powertrains to some extent or another, Mazda is taking a different tack — remaining heavily focused on the good ol’ internal combustion engine.

This doesn’t mean electrification isn’t part of the company’s future powertrain strategy – it is – but in the nearer term, the company is working on ways to increase power while boosting fuel economy in its small gas-powered engines.

(Before we get to that, yes, the company’s long-promised diesel is still coming to America, though there’s still no official date.)

In order to show off its new tech, Mazda invited journalists to its research and development HQ in Irvine, California to drive prototypes outfitted with the Skyactiv-X engine.

(Read More…)

We told you recently of the tsunami of complaints from Ford Focus RS owners swamping the National Highway Traffic Safety Administration — and other agencies — with minor gripes like, say, their brand new car burning engine coolant. Well, there’s a fix afoot.

In a recently released service bulletin, Ford describes the issue plaguing its hottest hatch and vows to replace every cylinder head installed in a Focus RS built between August 3, 2015 to July 6, 2017. That is to say all of them. (Read More…)

This is the sixth model year for the third-generation Mazda 6 which, despite its age, remains arguably the best-looking midsize sedan on the market. Mazda belatedly answered long-standing cries for more power by offering a turbocharged 2.5-liter inline-four for 2018, giving the model the grunt it needs to back up its sporting pretentions.

We now know what drivers can expect at the pumps from this engine, borrowed from the CX-9 parts bin. However, can the emergence of a true Mazda 6 sports sedan rekindle waning interest in the model? (Read More…)

While Ford hasn’t announced the pricing of the new Bullitt Mustang, the first example just sold for three-hundred grand at auction. We’re presuming future production models will be considerably more affordable because, damn, that’s a lot to spend on an appearance package and a few extra horses — even if the end result is undeniably cool.

Fortunately, all the proceeds went to supporting the Boys Republic — a charity near and dear to Steve McQueen. In addition to being remanded to the school after his own mother signed a court order that he was “incorrigible,” a matured McQueen often visited its children during the holidays and frequently donated large sums of money to the organization.  (Read More…)

General Motors has a new in-house 3.0-liter inline-six turbodiesel planned for its next-generation full-size pickups, and, while it won’t be available from launch, now we know where it’s being built.

GM’s vice president of global propulsion systems, Dan Nicholson, says the engine — which came as a surprise announcement during the 2019 Chevrolet Silverado’s weekend debut — will hail from Flint, Michigan. (Read More…)

Earlier today, we found out that the 2019 Ram 1500 will be offered with a mild hybrid option dubbed eTorque. Official fuel economy figures are not out yet, but FCA estimates the hybrid system should show around a 10 percent improvement over current figures. The system employs a motor-generator driven off the crankshaft that is similar to the GM BAS system in some ways.

The novel part of the Ram system is that it does not require liquid cooling on the V8 version and is instead air-cooled, which should reduce costs significantly.

(Read More…)

Thus far, the North American International Auto Show has been a truck festival  – more specifically, a green-truck fest. Ram showed a hybrid 1500. Ford revealed their V6 diesel. Chevrolet surprised with an inline-six diesel. Clearly the Big Three are looking at the calendar, with a big red circle over the 2025 CAFE standards looming like a dark cloud.

Achates Power, a fourteen-year-old startup from San Diego, has a different idea. By combining a variety of existing technologies – some of which date from before World War Two – they have developed an engine that they expect to meet 2025 fuel economy standards, emissions standards, and most importantly, the performance standards of light-truck buyers.

How does 37 mpg sound in a half-ton truck? That’s on gasoline. The Achates engine can also manage 42 mpg in the same truck running on diesel.

(Read More…)

The first Bullitt go-round was a 2001 attempt to upgrade the Mustang GT with a modicum of extra power and a styling nod to an old movie that couldn’t be more forgettable, were it not for a stellar chase sequence. The 2001-2002 Mustang Bullitt, however, couldn’t do anything about its facelifted 1990s sheetmetal, which hardly asks, “Are you going to San Francisco?”

It was the fifth-generation Mustang’s retro design that proved a far more suitable canvas for Ford’s performance brush. Endowed with a more generous helping of brawn, the 2008-2009 Bullitt was a fitting homage to a certain Dark Highland Green ’68 Mustang 390. Still, all good things must come to an end. Or do they?

If you’ve heard rumors recently, consider this a confirmation. The Bullitt is back, just in time for the 50th anniversary of the Steve McQueen flick that made chassis-bending jumps popular a decade before the Duke boys. Driven onto the Cobo Center stage in Detroit by McQueen’s granddaughter, Molly McQueen, the Sunday night reveal of Ford’s turtleneck-and-sport-coat ‘Stang was a pleasant distraction from the automaker’s incessant future-speak. (Read More…)

General Motors has recently filed a patent that could point to the future of the company’s high-performance offerings, including the C8 Corvette.

After 18 months in review by the United States Patent and Trademark Office, documents published on October 24, 2017, reveal GM has been granted a patent for an internal combustion engine with elevated compression ratio and multi-stage boosting.

The document describes a propulsion system made up of a high compression internal combustion engine that uses a low-flow supercharger in combination with a high-flow turbocharger, linked to “one or more electric motor/generators.”

It gives us an interesting look at how GM engineers plan to continue producing obscene performance cars like the Corvette ZR1 and Camaro ZL1 1LE in a world of increasingly stringent emission regulations.  (Read More…)