3 liters, 3 turbos, and 423 ponies: AC Schnitzer’s diesel ACZ4 does our kind of math

Diesel engines are typically associated with high-torque work trucks and fuel-efficient commuter cars, but in the right hands, they have impressive performance potential.

Perhaps the best example of this came last year, when the English-built Trident Iceni Diesel wowed with its claims of 0 to 60 mph in 3.7 seconds and a 2,000-mile tank range.

German tuner AC Schnitzer is looking to further prove the capabilities of diesel engines with the ACZ4 5.0d.

The car starts out in life as a BMW Z4, but the 2.5-liter inline-six has been yanked out. Replacing it is the 3.0-liter diesel unit from the X5 M50d, the same that features not one, not two, but three turbochargers.

Under the hood of the X5, the six-pot makes a stout 381 horsepower and 545 pound-feet of torque, but AC Schnitzer cranked it up to 423 hp and a whopping 619 lb-ft. It’s so powerful, in fact, that the Aachen, Germany company had to swap out the rear axle for the one featured in the old V8 M3.

AC’s modifications didn’t stop there, though, because the Z4’s stick shift has been swapped out for an 8-speed auto with “pedal sports shift.” Put it all together and you’ve got a 0 to 60 mph time of 4.5 seconds, making it one of the quicker diesels you can find.

Unfortunately, you can’t buy one. The 5.0d is billed as a one-off concept, which explains the radical bodywork. Outside of the stylized decals and orange soda wheels, the car wears a carbon fiber roof, carbon fiber rear skirt, and carbon fiber trunk lid. It also equips fully-adjustable racing suspension, a performance braking system, sports exhaust, and a revamped interior.

AC Schnitzer says that despite the SUV-sourced powerplant, the car weighs only 3,238 pounds, some 200 less than stock.

Product Review

The Ferrari Portofino is the super stallion you’ll want to drive every day

With the introduction of the Portofino, Ferrari addresses the California T’s stylistic shortcomings while improving comfort, convenience, and performance. There’s little “entry-level” about this super stallion.
Movies & TV

Stranger Things season 3 is coming! Here’s everything we know so far

With a sophomore season as strong as its first, Stranger Things is now moving on to season 3. Here's everything we've learned so far about the Netflix series' upcoming third season, premiering in July 2019.
Product Review

There’s almost nothing bad to say about the Mi Mix 3, but you still shouldn’t buy it

The Xiaomi Mi Mix 3 is good-looking, really well made, packed with features, and is a powerful, modern, desirable smartphone. But you probably shouldn’t buy it. Why? Nothing wrong with the device itself, but Xiaomi itself is mostly to…

Tesla wirelessly gives the Model 3 a 5-percent increase in power

Tesla again showed the potential of its innovative over-the-air software updating system by making the Model 3 five percent more powerful via a firmware update. The Performance model gained 23 horsepower.

Autonomous shuttle rides coming to New York City via Optimus Ride

Workers at the Brooklyn Navy Yard in NY City will soon be able to make their way around the 300-acre industrial park in Optimus Ride's self-driving shuttles. The tech startup says it's the first trial of its kind in the state.

Renault-Nissan-Mitsubishi group uses Microsoft cloud platform for connected cars

The Renault-Nissan-Mitsubishi Alliance is launching a new cloud platform for its cars. Based on Microsoft Azure, the Alliance Intelligent Cloud will enable features like connected services and over-the-air updates.
Product Review

2019 Volkswagen Jetta offers German refinement and tech at an affordable price

With enough tech to make villains jealous, the Volkswagen Jetta punches above its class as a forward-thinking sedan. Spacious, comfortable, and efficient, the Jetta is a refined offering. German refinement comes with a serious attitude.

The 2019 Toyota C-HR gains a popular tech feature as its price comes down

Toyota has updated the C-HR, its entry-level crossover, by adding an entry-level trim level to the lineup. Every model regardless of price also comes standard with an 8.0-inch touchscreen compatible with Apple CarPlay.

The 2020 Porsche Cayenne Coupe is an exercise in form-over-function design

Porsche expanded its lineup of SUVs with a swoopier evolution of the Cayenne named Cayenne Coupe. Don't let the name fool you: it still has four doors. It stands out with a fastback-like roofline that's lower than the Cayenne's.
Product Review

Chris is the virtual co-pilot phone-obsessives need in their car

Driving while using your phone is dangerous, and often illegal. Meet Chris, the digital assistant for your car that wants to help keep your hands off your phone, and your eyes on the road.

Protect yourself and your ride with our favorite dash cams

Dashboard cameras can assist drivers in car accident claims, settle speeding ticket disputes, and even catch glimpses of incoming meteors, among other things. Here, we've compiled a list of the most noteworthy offerings available.

Tesla revives its referral program with chances to win a Roadster

Tesla has revived its referral program that ended in February because of cost pressures. This time around the perks aren't quite as diverse, though it does offer regular chances to win a Roadster or Model Y.

Tesla ends scheduled servicing because electric cars need less maintenance

Tesla will longer offer scheduled maintenance plans, switching to an "as needed" model. This reflects the fact that electric cars need less regular maintenance than gasoline or diesel cars.

The go kart-like Mini Cooper will soon add zero emissions to its resume

Mini is in the final stages of developing an electric version of the Cooper. The 2020 Cooper SE will receive powertrain components from the BMW i3, including a 181-horsepower electric motor and battery technology.