The car is amazing drives nicely ;built for the autobahn) handles nice through the mountains, and mostly comfortable. The front seats are hard for the first 5000 miles but then become softer. At slow speed of up to about 15-20 mph the steering is super light but then has more resistance. The brakes are good for 15000 miles but then really start to suck big time. If I bought this car I would put some better after market brakes. Also get the optional led headlights they are amazing. The rear seats are amazing they are very comfortable and you have tons of knee and head room. The 3.5 liter is a good engine but not great, over 3000 rpm it's rough and we have already had a coolant leak with the car but maybe they just had a problem making ours. The Engine though still makes a good sound for a v6. Also after left in sun for a few hours everything creeks in the car for a good twenty minutes. The mpg is good but could be improved. The car does have a lot of small hidden compartments and a trunk bigger than the others. But you won't be disappointed for the most part. The car is very relaxing, and fun to drive. Better than its competitors.
I just bought my 9th E Class Sedan on December 12th, 2014 - a 2015 E 400 Sedan. Like all E Class Sedans I've owned and driven, it's a pleasure to drive, however the new Twin-Turbo V-6 Engine is a true performer (329 hp 354 lb ft torque). After driving the new E 400 for 5 weeks now, I'm getting 31.8 mpg highway and 20 mpg city with a combined average of 24.2 mpg. Power, performance and superb handling are not sacrificed at all with the new high mpg power plant.
This is the best automobile I have ever driven! Standard Features are abundant and I ordered the car with every available option. The car handles so beautifully. I recommend ordering the 19" optional wheels - better handling!