The twin-turbocharged 4.0-liter V-8 set to debut in the Mercedes-AMG GT sports car has finally been revealed. The unit develops 503 horsepower in its initial state of tune but we’re expecting much more powerful versions to be introduced.

McLaren announced today that the track-focused version of its P1 supercar will wear the automaker’s iconic GTR badge last used on the McLaren F1 GTR race car. Although the new P1 GTR isn’t intended for international motorsport, it should still be one of the fastest cars ever produced.

Mustang fans, you can finally build your ideal version of the new 2015 model. Ford has launched the configurator for its sixth-generation Mustang and revealed pricing for the full range.

You'll find all of this and more in today's car news headlines from around the High Gear Media network, right here at Motor Authority.

Mercedes-AMG’s New Twin-Turbo 4.0-liter V-8 Revealed, Rated At 503 HP

Track-Focused McLaren P1 To Wear GTR Badge, Deliver 986 Horsepower

2015 Ford Mustang Configurator Goes Live, Includes Pricing

Ford, Heinz Cook Up Tomato-Based Projects: Will The Technology Ketchup?

Toyota Takes Pole For 2014 24 Hours Of Le Mans: Video

Ford Cuts Gas Mileage On 6 Models: What You Need To Know, And Open Questions

Jaguar Land Rover Special Operations To Build Bespoke And Extreme Performance Vehicles

Uber Alles? European Cab Drivers Rally To Save Traditional Taxis, But It May Be Too Late

BMW And MINI Cars Getting GoPro Integration

Future Pickup Trucks: 7 Out Of 10 Could Be Aluminum By 2025 (Says Aluminum-Industry Study)


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