BMW to Turbocharge its Entire Lineup of 4-Cylinder Gasoline Engines

Citing inside sources from BMW, British magazine Autocar is reporting that all of the Bavarian automaker's future four-cylinder engines will benefit from turbocharging technology. This includes all four-pots with outputs up to 245 horsepower, with the new straight-six engines taking over from there.

All of BMW's turbocharged four-cylinder engines will be built upon the same 2.0-liter aluminium block, with the difference in performance being made by using two different types of turbochargers and different engine mapping (apparently, BMW learned its lesson well from the VW Group...).

The aluminium block gets a new and very thin cylinder lining of only 0.3 millimeters thanks to the use of sprayed iron technology. That's a massive improvement over the classic 1.5 mm thick cast iron lining and it translates into less weight and more durability.

The most powerful engine, which will be soon available to order in the small X1 SUV under the xDrive28i badging, is a complex unit, having a double-sided twin-scroll turbocharger which works at pressures of up to 200 bar, double-VANOS variable valve timing and direct fuel injection.

Following lower-powered units are expected to get a single conventional turbo instead of the twin-scroll technology. The new turbocharged four-cylinder units will make their debut on the next generation of the 3-Series, expected in 2012.



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Spy shots: BMW releases official teasers for new X1

It’s reported that in the next couple of years BMW will be releasing a number of its latest models including new variants of its present top selling models and some models that have never been seen yet. The new X1, revealed in spy photos, is a new crucial model of BMW and will take the carmaker into the compact SUV market currently dominated by the likes of the Toyota RAV4 and Honda CR-V.

The spy shots of the new X1 shows its outlines and curves under the least amount of camouflage. The checkered cladding does obscure the details, but the overall feel of the vehicle is definitely there. Most notable is the completely undisguised grille, and the sporty new front and rear bumpers. Front and rear lights are similar to the 5-Series GT and 7-Series sedan, respectively.

The new X1’s running gear is based on the 1-series compact car but its ride height will be taller. The car is actually expected to use a mixture of 1-series and 3-series parts, sort of bridging the size gap between the two - not that the gap was large to begin with. BMW’s X-drive AWD system will also feature.

Engine options will range from a 145hp (108kW) 1.8L four-cylinder petrol engine to a range-topping 3L turbodiesel. Transmissions will include a conventional six-speed manual as well an optional six-speed self shifter.

Much of the car’s components will also be shared with an upcoming SUV model from Mini to save on development costs, although the BMW model is expected to be significantly larger than the Mini

The production version of the X1 will be shown for the first time to the general public at the Frankfurt Auto Show in September. Production volume is expected to top the 100,000 mark and will start at a BMW plant in Leipzig by the middle of the year. Pricing is unknown at this time, but it will most likely be set between the 1 Series and the X3, likely starting close to the $30,000 mark.

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