New engines focus on efficiency on the second generation Mercedes B-class

Mercedes B-classThe new B-class will be unveiled at the Frankfurt motor show next month. Mercedes calls it a sports tourer, but it’s a compact hatchback to all of us. Compared to a Prius, it’s 3 inches shorter, but 3 inches taller. It has a really high roof line which shall make it convenient for families who often need to carry large items. High roofs are generally seen as a penalty when it comes to aerodynamics, but that is not the case here. The base B-class has an excellent .26 drag coefficient, and there’s more with an optional efficiency and aerodynamic package (BlueEfficiency), which lowers this value to an exceptional .24.

Mercedes B-classThe novelty is more than skin-deep as the car’s built on a brand new front wheel drive platform, and all engines also, gas and diesel, are new. All are turbocharged with direct fuel injection. The gasoline unit is a 1.6-liter that comes in 2 power levels: 122 or 156 hp. The diesel unit is a smaller displacement version of the 2.1-liter from bigger Mercs, it will offer 109 or 136 hp from 1.8-liter. The transmission will be a 6-speed manual, or a new 7-speed double-clutch automatic. That’s another first for a small front-drive Mercedes. Of course, all these new engines will be tuned to give a lot of torque at low revs, and that 7-speed automatic will be very quick to upshift. Mercedes hasn’t released any performance or fuel economy figures, but we bet the B-class will be a winner.

Mercedes B-class

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  1. mercedes b class

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