The 2021 Tesla Model 3 Standard Range Plus is the least expensive trim in the lineup. It features a 54-kWh battery pack and electric motor for an estimated output of around 340 horsepower. The Standard Range Plus has its electric motor placed between the rear wheels. Key insights: $37,990 (39.94% below average); Cost per mile: $0.031 (33.99% below average); Estimated annual charging cost: $450 (36.57% below average); Estimated fuel savings compared to a standard car: $10,250 (14.49% above average); Charge time: 8.5 hrs at 240V (standard charger) (standard charge time is 6.44% below average); hwgK.