As previously reported by GM Authority, the Chinese-spec 2024 Cadillac Lyriq AWD wears a 700E4 badge as a representation of the electric crossover’s torque rating in Newton-meters (Nm). Interestingly, Lyriq AWD models destined for the North American market will wear a 600E4 badge. Today, GM Authority explains the reasoning behind this discrepancy.
Before we continue, it’s worth understanding Cadillac’s nomenclature in the first place. Using the 700E4 designation as an example – per Caddy’s torque-based alphanumeric naming convention – the “700” represents 710 Nm (524 pound-feet of torque), the “E” refers to the model’s all-electric drivetrain, and the “4” constitutes 4WD/AWD. From there, Cadillac rounds the torque rating in Nm to the nearest 50.
Following this structure, the 2024 Lyriq AWD sold in North America features a torque rating of 610 Nm, or 450 pound-feet, thereby getting the 600E4 moniker.
For those wondering why the Lyriq’s output differs across the two markets, it comes down to battery packs. The Chinese-market Lyriq uses a different Ultium battery pack from its North American counterpart, one that uses cylindrical cells instead of pouch-style cells. To accommodate for this discrepancy, SAIC-GM – the Chinese joint venture responsible for GM operations and production in China – is working with a different partner than LG Chem, which supplies pouch-style Ultium batteries to GM in North America.
Meanwhile, the rear-drive Lyriq wears a 450E badge, indicating 440 Nm of torque. The lack of a “4” after the “E” indicates two-wheel-drive (rear-wheel-drive, to be exact).
The 600E4 badge represents the highest numerical badge of any Cadillac model currently sold in North America. However, the honor of the highest numerical Cadillac badge ever goes to the Cadillac CT6 Platinum, which featured an 800T badge, where the ‘T’ designated a turbocharged engine. This luxury sedan was powered by a detuned version of the 4.2L LTA V8 twin-turbo engine, otherwise known as the Blackwing engine, and produced 778 Nm or 574 pound-feet of torque.
As a reminder, the Cadillac Lyriq is based on the GM BEV3 platform and is propelled by GM Ultium Drive motors. For North American markets, production of the 2024 model is set to kick off on March 17th, 2023 at the GM Spring Hill plant in Tennessee.