Aston Martins Formula 1 inspired Valkyrie now has a track only version that boasts over 1,100 hp at just 1,000 kg and capable of generating 1,000 kg of downforce. Those numbers are mighty impressive and mean the Valkyrie AMR Pro exceeds the magic 1:1 power-to-weight ratio of over 1 hp per 1 kg of weight. And if that wasn't enough, thanks to Adrian Neweys magic touch the car can generate more than its own weight in downforce.