Take a look at the Mazda CX-5. The CX-5 is 545 pounds (247kg) lighter than the Mazda CX-7, the model it replaces. The current Mazda 6 weighs around 1400kg and a new model which is coming in 2014 will be lighter. And the next-gen MX-5 is rumoured to be 300 pounds (136kg) lighter than the current model.
How does Mazda intends to make these changes? Part of the plan comes from using fewer materials such as steel and together with a better way of structural bracing. Other weight saving measures come from using lighter materials such as the bolts in the Mazda CX-5, which are 8 grams lighter per bolt versus what was used in the CX-7.
Lately, there have been a trend of automakers switching to lighter materials such as aluminium and one of them is Jaguar. Its upcoming F-Type’s chassis and body is made entirely out of aluminium. Another material is carbon fibre. With some auto firms obtaining shares in and teaming up with carbon fibre manufacturing companies, it is safe to say that we will see more carbon fibre parts in mainstream models.
Photo credit: Net Car Show