In a Front-engine, rear-wheel-drive layout what type of engine is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit?
Front-engine, rear-wheel-drive layout In automotive design, an FR, or front-engine, rear-wheel-drive layout is one where the engine is located at the front of the vehicle and driven wheels are located at the rear. This was the traditional automobile layout for most of the 20th century. Modern designs commonly use the front-engine, front-wheel-drive layout (FF).
Bottom breather A bottom breather is a front-engine automobile that takes in air from below the front fascia (nose) rather than through a conventional grille at the front of the vehicle. This styling can provide a more aerodynamic front end, or the appearance of better aerodynamics, or the look of a rear-engined sports car such as the Porsche 911, which also lacks a front grille.