Some googling says
there is a claimed 1500 hp Dodge Viper out there, which is obviously not stock, as the "regular" one does 640 hp.
The "regular" Mitsu Evo does like 237 hp... nobody is claiming one with 1400...
someone is claiming one with 2000 hp...
So if what you are translating is suggesting not stock models, but heavily modified cars that only exist for the purpose of making cool videos and killing rich people, this could be what they are talking about.