The current Guinness World Record for longest EV drive on a single charge is held by Lucid Motors, for a 749-mile journey made by the company’s Air Grand Touring sedan. Lucid grabbed the title from a Mercedes-Benz EQS 450+, which traveled 649 miles.

GM said it was important to set a record only after optimizing the vehicle in ways real customers could replicate at home.

Finding the sweet spot in the sprawling GM EV truck universe takes us to the Trail Boss model, which makes a surprising amount of sense.