Our spy photographers snapped these images of the all-new Mercedes B-Class that's expected to hit showrooms later in 2011. The next generation B-Class will be built on a new front-wheel drive platform, dubbed the MFA, and will be made of a conventional unibody frame, making its production less expensive than the current model's sandwich structure engineering.The new B-Class will feature a series of engines supplied by Renault as well as in-house engines for higher range outputs.The smaller engines will be available in 1.2-litre, 1.4-litre and 1.8-litre options as well as a 1.6-litre diesel, also supplied by Renault. Mercedes-Benz will use its own 2.2-litre diesel for the top of range diesel variant.POWERED BY RENAULTThe German brand is also set to introduce a number of "green" models, including a plug-in hybrid (E-Cell Plus), an all-electric (E-Cell) and a fuel cell (F-Cell) variant.A six-speed manual and six-speed dual-clutch will be available along with stop/start technology on both transmissions, as Mercedes-Benz is dropping the CVT. Mercedes says the new model will also have more interior space thanks to a lowered floor. The new model will also sport LED head and tail lights.The MFA platform will also spawn the next generation A-class, as well as other derivatives - among them a compact SUV and a small sedan.The platform will source its front-drive engines from Renault.