Autoblog

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Remember the Maybach Exelero? The ultra-premium marque from Merceceds-Benz built it almost two years ago as a high-speed test vehicle based on its Maybach 57 luxury sedan, but unfortunately never offered production versions to the public. To the rescue comes Brabus, those whacky German tuners who give the go-fast treatment to everything produced by the three-pointed star, from the Smart ForTwo all the way up to this 730-hp limousine.

Like the Exelero, Brabus' monster is based on the Maybach 57 and was built in order to achieve the highest speeds attainable. To get there, Brabus tuned the Maybach's twin-turbo V12 to the same standard as the CLS-based Brabus Rocket speed record car: that means boosting power from 550 hp to 730, thanks to an increase in displacement from 5.5 liters to 6.3, coupled with a new crankshaft, pistons, cylinder heads... the works. The turbos were beefed up, and along with the intercoolers, a custom exhaust was installed and the ECU was reprogrammed.

The result is a top speed of 330.2 km/h (205.2 mph in American speak) achieved at the same Nardo test track in Italy where the Exelero was put through its places. A far cry from the 218.4 mph achieved by the Exelero, but not to shabby in its own right. And here you thought the S versions of the Maybach 57 and 62 were obscene enough....

Check out the images in the gallery below, and the press release after the jump.

[Source: Brabus]

0-60 time is the gold standard in automotive performance. It's the first thing an enthusiast looks at when presented with a car's stats, and typically trumps all others. Top speed is all but completely irrelevant in most cases, while the quarter mile is only valued in drag-racing circles. Attempts have been made to substitute something more all-encompassing, like the 0-100-0 acceleration/braking test, but it hasn't replaced the old 0-60. Lap times around a given course might be more useful for comparison, but unless every manufacturer tested on the same track, that falls to pieces. At the end of the day, 0-60 is where it's at, but as Forbes points out, it's not the most reliable or useful performance indicator.

In most cases, it takes ideal conditions – including a professional driver – to hit sixty in the time specified. As a result, some manufacturers quote conservative figures so as not to disappoint customers who can't manage the quoted time. Further confusing the situation, some automakers prefer to quote acceleration time in kilometers, but while the 0-100 km/h (62mph) standard might be very close to the mark, in acceleration times every millisecond counts.

It may be the gold standard, but even gold has its imperfections.

[Source: Forbes Autos]