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Vehicle Technology

Various energy alternatives and advanced technologies.

Driving Energy Diversity

General Motors has taken great strides to take full advantage of today's innovations and engineering to ensure that the vehicles we produce have lower emissions and better fuel efficiency... all without sacrificing performance or utility.

Our global strategy is driven by a focus on energy alternatives and advanced technologies that will:

  • Displace petroleum
  • Improve fuel efficiency
  • Reduce emissions

Read more about our energy diversity initiatives

Fuel Efficiency

GM fuel efficiency technologies.

Fuel Efficiency

By combining advanced engine and transmission technologies, GM has been able to achieve substantial fuel efficiency. For example, with the fuel-saving start-stop technology, the Chevrolet Malibu with 2.5L engine has more than 10 percent improvement in city fuel efficiency.

Other technologies that GM has been developing and implementing to improve fuel efficiency include:

  • Rack Electric Power Steering
  • Deceleration Fuel Cut-Off
  • Idle Speed Reduction
  • Optimized Tire Rolling Resistance
  • Aerodynamic Drag Reduction
  • Electronic Returnless Fuel System
  • Regulated Voltage Control


Biofuel energy technologies.


Through our dedication and commitment to the development of biofuel vehicles, General Motors is the leading automobile manufacturer in providing vehicles that run efficiently on ethanol and biodiesel. In fact, of the 9 million FlexFuel vehicles on the road in North America, over 6 million are GM vehicles. And, there are approximately 500,000 GM FlexFuel vehicles in Canada including the GMC Sierra (4.3 L and 5.3 L engines only) which is E85 (85% ethanol) compatible.



With GM’s latest clean diesel technology, improved fuel efficiency and reduced emissions can be had without sacrificing power. For example, Chevrolet Cruze Diesel, powered by award winning Ward’s 10 Best Engines, gets up to 4.2 L/100 km highway fuel consumption rating.

Compressed Natural Gas & Liquefied Petroleum Gas

Compressed Natural Gas (CNG) and Liquefied Petroleum Gas (LPG) are alternative fuels that can help reduce greenhouse gas emissions.

Compressed Natural Gas & Liquefied Petroleum Gas

Compressed Natural Gas (CNG) and Liquefied Petroleum Gas (LPG) are alternative fuels that can help reduce greenhouse gas emissions in light duty vans, pickups and long-haul trucks. GM is also producing the CNG-only Chevrolet Express and GMC Savana vans. These vans have a specially designed 6.0 L Vortec V8 engines built for gaseous fuels.


Electric energy is used in the Chevrolet Volt, Cadillac ELR, and the Chevrolet Spark EV.

Extended-Range Electric

Chevrolet Volt combines a high-energy lithium-ion battery pack with an advanced electric drive unit for an extended range. In the electric mode, Volt can drive initially on electricity for a range of 61 km*. The extended range mode features a gas-powered generator that can produce electric energy to add hundreds of kilometres of driving range.


Chevrolet Spark EV features an all-electric powertrain that uses advanced nanophosphate lithium-ion battery packs. Spark EV is available in Canada as a GM Fleet vehicle.


General Motors hybrid technologies.


General Motors firmly believes that the use of electric propulsion technology offers the best long-term solution for replacing petroleum-based fuels. eAssist™ is the hybrid propulsion system that takes advantage of an advanced lithium-ion battery and a 15 kW motor-generator to achieve new levels of fuel efficiency. Other eAssist powertrain fuel saving features include:

  • Engine off at idle
  • Extended fuel cutoff on decelerations
  • Regenerative braking
  • Electric boosting
  • Intelligent charging/discharging of the lithium-ion battery

eAssist is featured on Buick Regal, Buick LaCrosse, and Chevrolet Malibu.

Fuel Cell

GM fuel cell technologies.

Fuel Cell

As far back as 1966, General Motors realized the environmental potential of a vehicle being propelled by a fuel cell. In fact, GM produced the first fuel cell road vehicle, the Chevrolet Electrovan. Today, GM is actively developing hydrogen fuel cell technology that will usher in a new age of vehicles with:

  • Zero petroleum usage
  • Zero greenhouse gas emissions
  • Zero tailpipe emissions
  • Triple the range of electric vehicles
  • No overnight charging