The Lexus LFA and Dodge Viper ACR represent two radically different approaches to the naturally aspirated V10, making their carwow runway showdown an intriguing test of power delivery, gearing, traction, and driver technique.
The Lexus LFA is powered by a hand-built 4.8-liter naturally aspirated V10 producing 560 horsepower and 480 Nm of torque. Its high-revving character is matched to a six-speed automated manual transmission driving the rear wheels. Weighing roughly 1.5 tons, the LFA combines relatively modest mass with an engine renowned for its exceptionally rapid throttle response and high-rpm performance.
Opposite it, the fourth-generation Viper ACR takes a much more muscular approach. Its 8.4-liter naturally aspirated V10 originally developed more than 600 horsepower and 760 Nm of torque, while this particular example has been modified with an ECU tune, headers, and a full exhaust system, bringing output to approximately 650 horsepower. Unlike the Lexus, the Viper relies on a six-speed manual transmission, leaving launch and gear changes entirely to its driver.
The competition includes standing-start acceleration, rolling races from different speeds, and a braking test, creating a broader comparison than a simple quarter-mile contest. Launch technique becomes particularly important, with both cars requiring careful management of rear-wheel traction and gear changes. The LFA’s automated manual gearbox also introduces its own operational considerations, including a cooldown period between launch-control attempts.
So, which V10 gets to the finish line first? The answer is closer than you might expect. Watch the full video to witness every launch, every gear change, and the final sprint—and find out which machine claims the glory.
Source: carwow
