Bmw not ruling out the 1-Series M CSL

Article by Christian Andrei, on May 19, 2011

BMW fans love the 1 Series M Coupe but it seems like they’re prepared to transfer their affections to a higher-performance version, specifically a CSL variant that’s faster and lighter, according to UK magazine Car Dealer. BMW’s CSL variants are traditionally designed for buyers who want the ultimate driving machine that’s truly hardcore. Most buyers say that they’d be satisfied with the performance that the standard 1M offers but Car Dealer said that it’s possible that BMW will still make a CSL version.

Car Dealer said that UK BMW dealers pre-sold 300 1M models before it was officially launched. It’s estimated that its entire stock may be sold out within just a few weeks.

Because of this, Car Dealer suspects that BMW will consider other versions of the 1M, like a convertible, hatchback and CSL model, to be able to meet the demand for the 1 Series’ performance offering. BMW Product Manager James Morrison told Car Dealer that there’s scope for a CSL version.

He said that M is the “pinnacle of engineering,” so if there’s a proposal that’s special or unique such as a CSL variant, then it would consider it. Nevertheless, Morrison believes that it would be expensive to further reduce the weight of an M car, even more so for the diminutive 1 Series. He said that with a $57,000 price, the 1M works well but on whether it will do as well if it’s faster and quicker but priced at $85,000 is uncertain.

Serving as the core of the BMW 1-Series M Coupe is a twin-turbocharged, all-aluminum, 3.0-liter inline-6 engine. As a matter of fact, the high-revving inline-6 has been one of the chosen engine formats for the BMW M. It is of note that the second and third generations of BMW M3 were able to take advantage of the inline-6’s high output, sharp response, and audio output. When it was the turn of the BMW 1-Series M Coupe, it was decided that this car will be powered with the latest incarnation of the inline-6 engine.

With its free-revving nature and instantaneous accelerator response, this new all-aluminum, 3.0-liter inline-6 engine features twin low-mass turbochargers and BMW's High Precision direct injection. With this augmentation, this inline-6 engine is able to provide a level of output that a naturally aspirated engine could only match by employing more cylinders and having a larger displacement.

Specifically, the turbocharger system developed for this inlin-6 engine is able to maintain a high power output throughout the entire engine speed range, with up to 335 hp (250 kW) deliverable at 5,900 rpm. This twin-turbocharged, all-aluminum, 3.0-liter inline-6 engine could produce an estimated peak torque of 332 lb-ft (450 Nm) available between 1,500 rpm and 4,500 rpm. Optimal engine speed (redline) is pegged at 7,000 rpm.

In addition, the BMW 1-Series M Coupe has an improved engine management system with an electronically controlled overboost function that could, for a short time, increase the amount torque under full load by 37 lb-ft (50 Nm) to 369 lb-ft. This means that the BMW 1-Series M Coupe could accelerate from nil to 60 mph in just 4.7 seconds (0-100 km/h in 4.9 seconds) and reach a quarter mile in 13.2 seconds.

Top speed of the BMW 1-Series M Coupe is electronically limited to 155 mph (250 km/h). BMW M specially tuned the M exhaust system – marked by four signature exhaust pipes -- of the BMW 1-Series M Coupe to provide a certain personality in any operation. Interestingly, the BMW 1-Series M Coupe comes with the M Drive button mounted on the steering wheel. Seen first in the 2006 BMW M5, the M Drive button, when pressed, activates a sharp throttle response program to allow the car to perform as dynamically as the driver wishes.

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