The price in Australia would be closer to $1.3 million. Unsurprisingly the McLaren F1 team has injected technology from its formula one machines, predominantly in the extensive use of carbon fibre reinforced plastic. Almost every panel and body component on the SLR is made from carbon fibre, with the aim of reducing weight and improving stiffness, speed and precision. At 1.8 tonnes, though, the SLR is far from a featherweight sports car. An inconsistent brake feel, too, doesn't help on the stop-start LA freeways. The pedal feel is initially quite firm but unresponsive, prompting a firmer action, which then activates the brakes too much, leading to jerky braking. In an emergency situation there are no such issues, with the carbon-ceramic discs biting hard to halt the substantial machine. Mercedes and McLaren have injected plenty of supercar character into the SLR. From the instant the supercharged V8 fires, it's all business. The 5.4-litre engine is essentially a more powerful version of the engine once widely used in Mercedes AMGs but now replaced by a 6.2-litre V8, minus the supercharger. It's mounted deep back in the chassis to improve front to rear weight balance. Even a partial throttle application brings the engine almost instantly to life, its bark rising to a menacing scream, always underwritten by a mechanical concerto unexpected in such a sleek, sexy machine. There's also Rosetta Stone Hindi the distant whir of the supercharger, employed to force more air into the engine. The result is the most powerful Mercedes road car ever, mustering 460kW. Acceleration to 100kmh takes just 3.8 seconds on the way to a top speed of 2kmh. And that's all through a five-speed automatic transmission. You realise just how potent the McLaren SLR is when accelerating alongside a regular Mercedes AMG, already a brutally quick machine. The SLR is much quicker. Driving through the rear wheels, the McMerc uses its 19-inch rubber to full effect, doing a solid job of transferring drive to the road. The massive 780Nm of torque, or pulling power, is clearly enough to break traction. But the electronics and grip do their best to keep proceedings proper. There's almost no body shake, ensuring the car's steering and immense cornering ability. It builds speed so quickly - it can reach almost 0kmh by the time most family cars touch 100kmh. Driven sedately, though, the SLR is a viceless partner, even if the firm suspension can get tiresome on second--grade roads. It was all worth it, though, to sample two of the most sought-after Mercedes-Benzes ever built. What the classic lacks in performance and ability it makes up with character and a sheer sense of occasion. The 300 SL is also a fair chance of appreciating in value, whereas we'd wager the SLR McLaren will probably head the other way, at least initially. But both will maintain their status as benchmarks in the history of Mercedes-Benz.



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