How could a Dodge Viper accelerate from 0-60 MPH quicker than a Mercedes S65 AMG when it has less torque?

The Dodge Viper has about 500 pounds of torque when the Mercedes S65 AMG has over 700. Yet, the Viper accelerates from 0-60 in just over 3 seconds while the S65 accelerates from 0-60 MPG in 4.2 seconds. Why is this?

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