An eagle-eyed Honkster has captured photos of the 2012 Mercedes-Benz M-Class in the suburban wilds of Orange County, California.  As you can see in the photos, the ML was heavily camouflaged and was being tailed by an E-Class wagon support vehicle.

We’re told that the vehicle is about the same size as today’s M-Class, though you can expect Mercedes to adopt new engines under the hood. Car shoppers will be pleased to know that both the V6 and V8 engines will offer more power and significantly better fuel economy.

At a press event earlier this year, Mercedes said to expect 306-horsepower and 24-percent better fuel economy from their new 3.5-liter V6. The new 4.7-liter V8 has been turbocharged to produce 435-horsepower with 22-percent better fuel economy.

It’s worth noting that most of those mileage gains are the result of a new stop/start system that shuts off the engine when the vehicle is not moving. Unfortunately, it’s not clear if the system will make it to the US because of concerns over cost and whether or not government fuel economy ratings will give enough credit to the system.

Inside, we’re expecting Mercedes to equip the new ML with it’s latest generation of active safety equipment. Several new or improved technologies like Blind Spot Assist, Distronic Plus, and Attention Assist are available now on the E-Class family and it’s likely that they will make their way into the new ML when it hits the market next year.