Mercedes-Benz is getting ready to release third-generation M-Class SUV in the spring of 2012, They are focusing heavily on improving fuel efficiency. Compared to the previous generation, the new M-Class promises a 25-percent increase in fuel economy across the range.

Looking at the most economical SUV of the bunch, the ML250 Bluetec 4MATIC powered by a 4-cylinder diesel engine, it gets an amazing 47 mpg, 158 g/km (g/.62 mi)  of CO₂, and…

Mercedes-Benz has always been at the front of technology advancements and modern engineering. If it's the latest in luxury sytle interior, or the most high-tech and fuel efficient vehicles, Mercedes-Benz has what you are looking for. Now, the German auto maker is taking on Fuel Cell Vehicles and alternative energy.

Looking similar to the already available crossover, Mercedes-Benz R-Class, the FCV is composed of a hydrogen fuel cell to power the vehicle. The car…