In the current second-generation prius , the drivetrain alone is covered by 370 patents an indication of the technological hurdles the company had to jump in developing the car .
With a drivetrain emitting only water vapour , a 300-mile range and a top speed of 160 kph ( 100 mph ) , the vehicle , said mr wagoner , represented " the promise of truly sustainable transportation " .
It remains unclear what car ferrari will use to showcase its hybrid drivetrain system , but the green tech will likely mirror that outlined in the leaked patent drawings .