Given the diesel scandal lingering over Volkswagen's operations, it might come as a surprise that Audi has unveiled a new, high-performance flagship crossover powered by the controversial fuel. But the new SQ7 brings to the table much more than just a high-power 4.0-liter twin-turbocharged diesel V-8 engine. Among the model's numerous highlights is an electric compressor that spins at up to 70,000 rpm to supply boost so quickly that the lag endemic to turbochargers is largely negated. ALSO SEE: One-Quarter Of All Audis To Be Electric In 10 Years, Company Says The electric compressor is...
New Volkswagen TDI Turbodiesel Engine: 268 HP, Electric Turbocharger
Volkswagen will launch a 2.0-liter diesel engine with an electric turbocharger.Stephen Edelstein
Electric Turbochargers Forecast To Boom For Gas-Mileage Gains
Electric turbochargers could become more common as carmakers work to boost fuel economy.Stephen Edelstein
Volvo's Triple-Turbo Four-Cylinder Engine: 450 HP From 2.0 Liters
Prototype Volvo engine produces impressive power with help from three turbochargers, one of which is electric.Stephen Edelstein