Mercedes-Benz announced at the 2018 Detroit Auto Show that it will introduce a new line of -53 models.     

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The first three it's showing off are the Mercedes-AMG CLS53, E53 Coupe and E53 Cabriolet.     

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At the heart of the change is a new inline-6 engine, replacing the -43's V6.     

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Its output is a meaty 429 horsepower and 384 pound-feet of torque.    

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All three models with this new engine come with a nine-speed automatic and all-wheel drive.     

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Instead of using a traditional starter and alternator, Mercedes-AMG replaced both items with a single electric motor.   

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EQ Boost can provide an extra 21 horsepower and 184 pound-feet of torque to the wheels.     

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It also provides for stop-start functionality and a "gliding" mode that disconnects the engine from the transmission when coasting.     

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It also has an electric compressor to help build boost and prevent turbo lag.

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All three AMG -53 models go on sale later this year.

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Keep on scrolling to check out even more pictures of Mercedes-Benz's latest model and engine.

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