Mercedes-AMG SL gains entry-level 2.0-litre model with 375bhp Car News

The Mercedes-AMG SL got a new entry-level variant featuring turbocharger technology that the firm says is derived directly from Formula 1.

The rear-drive SL 43 is powered by a 2.0-liter four-cylinder turbocharged gasoline engine, producing 375 hp and 354 lb-ft of torque. The model also benefits from a 12hp boost from a 48V belt-driven starter-generator.

As standard, the SL 43 is equipped with an electric exhaust gas turbocharger, which Mercedes says is a world first for a production vehicle.

The technology, which is the same as that used on Mercedes-AMG F1 cars, adds a 4cm-thick electric motor to the turbocharger shaft. It directly drives the turbocharger, which Mercedes says “significantly improves immediate response from idle and across the entire engine speed range.”

Mercedes says it gives the SL 43 a more dynamic driving experience, optimizing acceleration and throttle input. It also maintains boost pressure when the driver has taken their foot off the accelerator.

The technology helps propel the car from 0-62mph in 4.9 seconds and to a top speed of 170mph. SL 43 models are also equipped with a nine-speed AMG Speedshift multi-clutch transmission.

Mercedes Technical Director Jochen Hermann said: “The electric exhaust turbocharger is a fascinating example of the extensive transfer between Formula 1 technology and production vehicle development.

“By implementing this in conjunction with our powerful four-cylinder M139, we were also able to draw on the enormous wealth of experience of our colleagues at Mercedes-AMG High Performance Powertrains. The technology increases agility and therefore driving pleasure, while improving the efficiency of the drive system.

According to Mercedes, the SL 43 features a slightly adapted exterior design, with rounded front and rear aprons. A set of 19-inch alloy wheels are fitted as standard, with the option to upgrade to 20 or 21 inches instead.

Inside, standard equipment includes the company’s MBUX infotainment, various driver assistance systems, leatherette power seats and gloss black interior trim with aluminum and carbon accents.

Pricing has yet to be revealed for the SL 43, but the model will sit below the V8-powered SL 55 4Matic+, which produces 469 hp, and the 577 hp SL 63 4Matic+.

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This notice was published: 2022-04-06 08:56:41

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