Rear mid-engine, rear-wheel-drive layout

Common card · No. 255500

In automotive design, an RMR, or rear mid-engine, rear-wheel-drive layout is one in which the rear wheels are driven by an engine placed with its center of gravity in front of the rear axle, and thus right behind the passenger compartment. Nowadays, such cars are more frequently called 'RMR', to acknowledge that certain sporty or performance-focused front-engine cars are also referred to as "mid-engine", the main engine mass being located behind the front axle. Until the early 1990s, RMR-layout cars were just called MR, or mid-engine, rear-wheel-drive layout), because the nuance between distinctly front-engined vs. front mid-engined cars often remained rather vague. In contrast to the fully rear-engine, rear-wheel-drive layout, the center of mass of the engine is in front of the rear axle. This layout is typically chosen for its favorable weight distribution. Placing the car's heaviest component within the wheelbase minimizes its rotational inertia around the vertical axis, facilitating...

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