Despite the increase in size, weight was reduced by about 200 pounds through extensive use of aluminum in the body shell. (autoweek.com)
So it is that the technology for the fourth generation points toward more extensive use of aluminum to keep weight down. (extremetech.com)
The 2015 C - Class makes extensive use of aluminum technology to reduce weight by 100 kg (220 pounds) in a car that is 4 inches longer. (extremetech.com)