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AC Schnitzer packs 400-hp, tri-turbo diesel into 1 Series

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At first blush, this might look like your run-of-the-mill BMW 1 Series, maybe with a few modifications. What you're actually looking at is a monster hot hatch with 400 horsepower and 590 lb-ft of torque. From a diesel.

For this year's Essen Motor Show – Germany's equivalent to SEMA – the Bimmer specialists at AC Schnitzer prepared the ACS1 5.0d concept you see here. Its selling point (if only it were for sale) is the combination of BMW's most powerful diesel engine and its smallest model. It utilizes the 3.0-liter triple-turbocharged inline-six diesel engine from the M50d versions of the 5 Series, X5, and X6 sold in Europe. That engine is normally rated at 376 hp and 545 lb-ft, which is already a ton of muscle. But Schnitzer has bumped up the output on both counts, and slotted it into a 1 Series hatchback. The result is a 0-62 time of just 4.5 seconds, leaving the M135i and M235i in a cloud of diesel soot.

Of course, Schnitzer has plenty more to showcase at Essen this year, including modifications for the 3 Series, X6 M, and Mini JCW. And you can bet all the other major European tuners will be on hand at the expo to show their wares, too. But as far as outlandish creations go, this monster diesel hot hatch is what's caught our attention.
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Compact and incredibly powerful
The 1-series by AC Schnitzer with impressive motorsport quality

At first sight, you do not expect brute force from the BMW 1-series. So the performance of the compact Bavarian after the AC Schnitzer tuning experts have equipped it with the M50d power plant and impressive performance upgrade, is even more incredible.

Originally designed for the 5-series, the "Diesel M-Technik" pack propels the 1-series a long way forward. The smallest BMW series now has an impressive drive concept from AC Schnitzer. After the performance upgrade, the concept engine of the ACS1 5.0d delivers 294 kW/400 hp and 800 Nm torque for generous thrust. Equipped in this way, it takes just 4.5 seconds to sprint from 0-100 km/h. The acceleration from 80-180 km/h is even more impressive: the ACS1 5.0d takes just 7.9 second for this.

The smallest of the compacts, the 114i, is already impressive thanks to a power increase by 52 hp to 154 hp. The four-cylinder petrol engine of the 116i, thanks to motorsport technology, now delivers 204 hp instead of 136 hp. The same figure is also achieved by the 118i, which previously had 170 horses under the bonnet. A stunning 360 hp or even 380 hp can be achieved with the BMW M135i with optional chargecooler and sports catalyst. Among the diesels, the BMW 116d, 118d, 120d and 125d all astonish with power upgrades to 139, 171, 218 and 258 hp respectively. For the latter, the Aachen-based tuners have been able to add a solid 40 hp.

AC Schnitzer chargecoolers and sports catalysts with 200 cells per inch, by cooling the compressed intake air and reducing the back pressure, help convert the BMW 1-series into a car to set your pulse racing. A glance under the bonnet with the AC Schnitzer engine styling tells you whom to thank for the increase in power and speed.

All these performance upgrades make the 1-series an even more impressive vehicle, and all come with a 2-year warranty. And once again, the readers of "sport auto" magazine have voted AC Schnitzer currently the best engine tuner across marques, confirming the company`s position as a competent partner for performance tuning.

Acoustically, the M135i makes its presence felt with a sports silencer and 2 chromed tailpipes in "Racing", "Racing Evo", "Sport" or "Sport Black" styles, in right and left combination. For all other 1-series, there is a choice of tailpipes in "Racing", "Racing Evo", "Sport" or "Sport Black" designs.

Sporting driving fun and maximum "cornering comfort" are provided by the AC Schnitzer racing suspension for the M135i, which is fully adjustable in height and also in compression and rebound stages. It provides lowering by 35 - 45 mm at the front and 40 - 50 mm at the rear. If you prefer not to go this low, the AC Schnitzer sports suspension and suspension spring kit (30 mm lowering front and rear) are available for all the 1-series models. Full control and maximum agility and dynamics are of course guaranteed!

Naturally Aachen also offers corresponding aerodynamic components for the BMW 1-series. In combination with the two-piece AC Schnitzer front spoiler elements (with M-Technik), the front spoiler (not for LCI without M-Technik), chromed front grille in the export version, and rear roof wing achieve driving dynamics which will quicken the pulse of every BMW and tuning fan. The rear skirt protective film and carbon mirror cover, and the AC Schnitzer design stripes, complete the overall bodywork package in AC Schnitzer look.

AC Schnitzer also presents dynamics in the interior of the 1-series BMW. The "Black Line" aluminium cover for the "i-Drive" system controller (for vehicles without i-Touch controller), AC Schnitzer keyholder, a gear knob with digital gear display, the "Black Line" aluminium gear knob or a leather gear knob (illuminated and unilluminated) are available for sophisticated 1-series customers. And if that weren't enough: the "Black Line" aluminium handbrake handle, foot rest and aluminium pedal set in the new style, and foot mats in velours, offer plenty of choice for custom styling of the interior.

The wheelarches of the 1-series by AC Schnitzer can be filled just as individually. There is a choice of wheels in sizes 8.5 x 18" or 19" and 20" with suitable tyres: Type VIII forged alloys in BiColor Black, Type VIII rims in BiColor Black, BiColor Silver or Anthracite, and Type IV wheels in BiColor Black or Silver.

And of course the wheelset range wouldn't be complete without the new AC1 alloys in BiColor or Anthracite with their aura of masculinity and sophistication. A combination of elegant design with tremendous strength - just like the BMW 1-series by AC Schnitzer.

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