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The disadvantage of the RR configuration is that placing the engine outside the wheelbase creates significant problems for handling as, when the car begins to slide on a corner, the end of the car will tend to want to swing wide and overtake the front - especially under braking.
Most manufacturers have abandoned the RR layout apart from Porsche who has gradually developed their design with improvements to the suspension as well as electronic aids to reduce the shortcomings of the layout to acceptable levels.
Early cars using the RR layout include the Tucker, the Volkswagen Beetle, the Porsche 911 and the controversial Chevrolet Corvair.
In contrast to the MR layout, however, the center of gravity of the engine itself is actually past the rear axle.
A range of sports road cars and racing cars with the RR layout were produced by the French company Alpine (badged as Renaults in some countries, including the UK, to avoid trade mark conflicts).
Early cars using the RR layout include the Tucker, the Volkswagen Beetle, the Porsche 911 and the innovative Chevrolet Corvair.
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