BMW’s One-Off M5 CSL

BMW's M division has unveiled a special edition car called the M5 CSL, as part of its 25th anniversary,more on its performance and features.

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As a part of the 25th anniversary celebrations of the iconic four door saloon called the E60 M5, BMW’s M division has unveiled a special edition light-weight version of the same. This car is a one-off version named as the M5 CSL.

Various significant changes have been made to give birth to the M5 CSL. The heart of the M5 CSL is a heavily modified version of the standard M5’s 5.0-litre V10 engine. The stroke has been elongated to raise the capacity of the engine to a whooping 5.5-litre. This is the largest engine ever featured in an official M-car. A carbonfibre that boasts of an increased capacity air box and a secondary oil cooler has been included as part of the engine overhaul. The introduction of a higher capacity air box has resulted to a modification on the front bumper where additional air ducts are positioned in the area dedicated to serve as the license plate.

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BMW’s M division has not released any official power and torque figures but the head of development, Mr. Biermann stated that the output ranges at “around 580bhp and close to 400lb ft”- a steep hike in power and torque as compared to the 407bhp and 348lb ft standard M5. A beefed up version of the M3’s seven speed double clutch gear box is featured in the M5 CSL. The car also boasts of a steering wheel mounted paddle or push/pull gear lever. This offers smoother and quicker gear shifts as compared to the conventional M5 seven speed manual unit. The conventional roof is replaced by a carbonfibre one as a measure to reduce weight. This has spared almost 50kg from the standard M5’s 1830kg kerb weight. The interior has also been stripped down.

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The suspension though remains almost similar to the ones of the original M5. “We’ve altered the mapping of the variable dampers but the geometry remains the same,”  says Biermann. The M division of BMW hasn’t clamed any performance figures as well but Biermann stated that it is comfortably faster than the standard M5’s 4.1sec 0-100kmph. Despite the lump sum amounts invested in the creation of the M5 CSL, Biermann stated that it is destined to remain a one-off.

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