At the heart of this love affair is a twin-turbocharged flat-six that ingests enough gas and air to provide 540 horsepower and 523 pound-feet of torque. That’s a meaningful 20 more horses than last year’s Turbo and a remarkable 142 horsepower per liter, improvements that come from increases in boost and fuel-injection pressures. Boost from the variable-vane turbos builds so fast that the Turbo has the kind of instant thrust we now associate with Tesla’s powerful electric motors. While some of the shove is due to the clever turbos, some of it is due to the Dynamic Boost function that keeps the throttle open, the turbos spinning, and the engine stuffed with boost even when the driver lifts off the throttle. The system cuts fuel, but the turbos continue to move air into the engine in preparation for when the driver gets back on the gas. It works like magic, because this Turbo never leaves you waiting.