The new AC Ace Classic Electric roadster is based on the company’s Ace from the ’50s, so it should be no surprise it shares ...

When powering AC motors ... per minute. The drive produces a set of pulse-width modulated signals that are positively or negatively oriented to create the desired waveform. The height of the pulse, ...

In most AC motors, the speed is determined by the frequency of the power and adjusted using a variable frequency drive which changes the frequency ... expressed in horsepower (hp). Horsepower is the ...

Bipolar drives and ... step angles: 0.5 to 15 degrees. High-speed capability (less chance of a stall). Higher available torque than PM or VR stepper motors. Most effective but most expensive stepper ...

America finally gets the BMW M5 Touring super-wagon. With outrageous power, unprecedented efficiency, and a hatch, BMW steers the M5 into a new era.

The Rimmer 911 was a 1991 Porsche 964 911 redefined by Everrati to a 500-hp electric. It’s sporting the company’s 964 ...

Although primarily intended to boost efficiency by allowing electric-only travel at low speeds and engine-off “sailing” for short spurts on the highway, the 24-hp motor also works to backfill ...

And then justification, trying to find a way to reconcile the new G90 M5’s 7.5 pounds per horsepower to its predecessor ...

We drive an Everrati 964 911, though not as fast nor as furious as it needed. The car makes 500 hp and goes 200 miles on ...

The entry level Macan is unique among the range for having just a single electric motor, which drives the rear wheels. With a nominal 335 hp (250 kW ... At 9.6 kW, with an AC level 2 charge ...

Perhaps the most surprising aspect of the wagon is its price. The 2025 BMW M5 Touring starts at $122,675, which is only $2000 more than the M5 sedan. Chicken feed. If you want a wagon as bad as BMW ...

On paper, the 2024 Rolls-Royce Spectre sounds like a rehashing of The Simpsons' Canyonero jingle. It's an electric coupe that ...