GRI-G4  EN27, EN7
This content was subject to assurance by SGS Italia S.p.A. (14 March 2014).

Vehicle Architecture

To reduce fuel consumption and emissions without compromising safety and comfort, Fiat Group is working on reducing vehicle weight, aerodynamic drag, rolling resistance and the energy required by auxiliary systems.

In 2013, the best architectural solutions were applied to the Fiat 500L Living. The vehicle body is composed for almost 72% of the body weight by the latest generation in high-strength steel (HSS) to ensure the optimal performance without weight increase.

Fiat 500L

The newly-launched 2014 Jeep Cherokee uses 65% HSS, an improvement of 16% over its predecessor, the Jeep Liberty.

The Group continually strives to reduce the aerodynamic drag of its vehicles. From the earliest development stage, the aerodynamic performance of every vehicle profile is measured, optimized, tested and certified in the world-class, full-scale, aerodynamic wind tunnels of the Group. The 500L’s profile optimization led to a 10% reduction in the vehicle’s aerodynamic drag coefficient (Cx) compared with the Fiat Idea and Lancia Musa. 

The 2014 Jeep Cherokee was designed with integrated aerodynamic features to reduce drag and assist in improving fuel economy. Aerodynamically-designed features include:

  • Fully integrated, aerodynamic tuned body
  • Extensive rear spoiler
  • Integrated underbelly pans
  • Integrated sill aero spats
  • Tail lamp designed to kick air off the side of the body
  • Lightweight aluminum wheels  for aero efficiency

Composition of the new Fiat 500L Living platform

In 2013, Magneti Marelli consolidated the ADI material project to reduce by 20% the weight of  components such as suspension arms and knuckles. The next step will be to investigate the application of this material for other suspension products, focusing on weight reduction.

Magneti Marelli is also working actively in the innovation area to develop new lightweight materials such as CFRP or GFRP composites for suspension components. This type of material can provide significant advancement in reducing vehicle weight.