Why are electric vehicles like the Cadillac Lyriq and GMC Hummer so heavy?

More and more car buyers are opting for electric vehicles over their gas-powered counterparts is no surprise given the benefits of electricity. Electric vehicles are cheaper to own, cheaper to consume, better for the environment, and you even get tax credits for buying them, among other benefits. However, one thing about them that could be problematic in the future is that they are much heavier than gasoline-powered cars. This is particularly exemplified by models like the Cadillac Lyriq and the GMC Hummer.

How much do Cadillac Lyriqs and GMC Hummers weigh?

Cadillac Lyriq 2023 | Cadillac

From the specs and features listed, the Cadillac Lyriq and GMC Hummer are two very impressive EVs, despite being aimed at different markets. The 2023 Cadillac Lyriq is a four-door luxury electric SUV with RWD and AWD options for the drivetrain. Edmunds notes that it is also equipped with a battery with a capacity of 100.4 kWh. Like other future GM EV offerings, it is expected to come with the automaker’s Ultium battery technology.

The single-motor Lyriq offers 340 horsepower and 325 lb-ft of torque, boosting output to 500 hp for the AWD model. As for the 2022 GMC Hummer EV, it is another four-door vehicle, although it also comes with a truck bed in the rear of the electric vehicle. According to Edmunds, it comes standard with four-wheel drive. It’s also equipped with a 200 kWh Ultium battery, and its unique motor configuration can produce 1,000 horsepower.

Notably, the Cadillac Lyriq weighs 5,688 pounds and 5,915 pounds for the RWD and AWD versions, respectively. According to GM Authority, that weight makes it even heavier than Cadillac Escalade options with similar drivetrains.

The weight of the GMC Hummer EV is 9,063 pounds for the fully loaded Edition One. MotorTrend even points out that this new hummer weighs about 950 pounds more than the previous generation Hummer H1.

Why electric vehicles like the Cadillac Lyriq and GMC Hummer are so much heavier

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While the Cadillac Lyriq and GMC Hummer are great examples, it’s worth noting that electric vehicles are generally heavier than gas-powered cars. There are a few major and minor reasons as to why this is the case. The main reason is the battery needed to power the vehicle.

These batteries can be quite heavy, and Motor Hills even notes that for the smallest Tesla Model 3, the battery takes up nearly a quarter of the electric vehicle’s total weight. In addition, batteries are fragile and can explode if punctured. As such they need protection, with manufacturers often using heavy metals to create a protective shell around them.

Notably, with the overall weight increasing due to the batteries and the shell, the car also needs a stronger body. Therefore, EV manufacturers are using sturdier metals in their offerings, which increases the weight.

Other minor reasons for the increased weight include improved suspension systems and additional electronics needed in the vehicle, including charging hardware.

Problems associated with heavier vehicles

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Of course, the fact that electric vehicles are heavier also has other implications for vehicle safety and road use. According to CNN, the added weight of electric vehicles is good for their passengers but bad for passengers in gas-powered cars when the two collide. The heavier vehicle will generally continue to move, while the lighter one will have to change direction. Thus, the passengers of the lighter car will be subjected to a sudden change of direction which considerably increases their risk of injury.

In addition, there is the impact of heavier vehicles on road surfaces. Although the roads are designed to handle even the weight of commercial trucks, the added weight of options like the Cadillac Lyriq could take their toll over time. Over time, this may require more frequent infrastructure maintenance.

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