Theres hardly a car maker that remains so true to its lines when bringing out new models like Porsche. Visible details were improved on... modernized... and made even more interesting. On the whole, the exterior shape is still unmistakable Porsche, and is definitely a Boxster. In the Boxster S the 3.4 liter engine generates 310 horsepower, in the âordinary Boxster its 255. The average fuel consumption for both, just under nine liters per one hundred kilometers.