That means the Model Y is now outselling popular cars and SUVs like the Toyota Camry, Honda CR-V, Nissan Rogue, Toyota Corolla, Honda Civic, Honda Accord, and others that have dominated the sales charts in the past.

Remarkably, the Model Y accounted for more than half of Tesla's total registrations during the period, which stood at 211,842. The EV maker's second-best selling vehicle was the Model 3 with 72,259 registrations, up 28 percent over last year. 

Together, the Model Y and Model 3 accounted for almost 200,000 registrations out of Tesla's 211,842 total. The Model X crossover's registrations rose 15 percent to 8,216, while the Model S sedan's fell 67 percent to 3,826.