2025 BMW 8 Series Gran Coupe

The 2025 BMW 8 Series Gran Coupe brings four-door BMW performance and grand-touring proportions to Herb Chambers BMW of Sudbury in Sudbury, MA. This page helps shoppers compare its three trims, understand the available engines and drivetrains, review key dimensions and efficiency figures, and plan the next step through new inventory, vehicle appraisal, or an in-person visit. The lineup ranges from the rear-wheel-drive 840i to the all-wheel-drive M850i xDrive, giving the model a broad performance character while retaining a spacious sedan body style. With up to 523 horsepower, an 8-speed automatic transmission, and a 15.5-cubic-foot cargo area behind the rear seats, the 8 Series Gran Coupe is shaped for drivers who want high performance with everyday usability.

Starting MSRP

$91,700

Horsepower

335–523 hp

EPA MPG

17–21 city / 24–29 hwy

Drivetrain

Rear Wheel Drive / All Wheel Drive

Fuel

Premium Unleaded (Recommended) / Premium Unleaded (Required)

Body Style

Sedan

How the 2025 BMW 8 Series Gran Coupe Compares

Pricing, power, fuel economy, and drivetrain help define the differences among premium performance sedans. The 2025 BMW 8 Series Gran Coupe starts at $91,700, and MSRP excludes tax, title, registration and dealer fees.

Compared with the 2025 Audi S7, the BMW starts at $91,700 versus $85,700, offers 335 to 523 horsepower versus 444 horsepower, and returns 17 to 21 city MPG and 24 to 29 highway MPG versus 19 city / 27 hwy. Both use all-wheel drive in the configurations cited, while the BMW lineup also includes rear-wheel drive, favoring shoppers who want drivetrain choice; the Audi figure may appeal to shoppers focused on a lower starting price and consistent all-wheel-drive power.

Against the 2025 Lexus LS, the BMW starts at $91,700 while the Lexus starts at $80,335. The BMW produces 335 to 523 horsepower compared with 354–416 hp for the Lexus, and its 17 to 21 city MPG and 24 to 29 highway MPG range compares with 17–22 city / 27–29 hwy; both offer rear-wheel drive / all-wheel drive, while the Lexus requires premium unleaded and the BMW ranges from recommended to required premium unleaded. The Lexus may suit buyers prioritizing a lower entry price and broader stated city-economy range, while the BMW offers a wider power range.

Compared with the 2025 Audi S6, the BMW starts at $91,700 versus $75,900, with 335 to 523 horsepower versus 444 horsepower. The BMW returns 17 to 21 city MPG and 24 to 29 highway MPG, while the Audi is rated at 19 city / 27 hwy; both include all-wheel-drive configurations, and the BMW also offers rear-wheel drive, giving drivetrain flexibility to BMW shoppers while the Audi may appeal to buyers seeking a lower starting price.

Specifications and Configuration

The 2025 BMW 8 Series Gran Coupe is a sedan with an 8-speed automatic transmission, a 119-inch wheelbase, and exterior dimensions of 200.3 inches long, 76.1 inches wide, and 55.4 inches high. Width with mirrors is 84.1 inches, and curb weight ranges from 4,180 to 4,696 pounds.

Engine configuration varies by trim. The 840i and 840i xDrive use a 3.0-liter inline six-cylinder engine producing 335 horsepower and 369 lb-ft of torque, while the M850i xDrive uses a 4.4-liter V8 producing 523 horsepower and 553 lb-ft. Across the lineup, peak power arrives from 5,000 to 5,500 rpm and peak torque from 1,600 to 1,800 rpm.

The 840i uses rear-wheel drive, while the 840i xDrive and M850i xDrive use all-wheel drive. Fuel capacity is 18 gallons, and cargo space behind the rear seats measures 15.5 cubic feet. Premium unleaded is recommended for the 840i and 840i xDrive and required for the M850i xDrive.

Buying a 2025 BMW 8 Series Gran Coupe in Sudbury, MA

Herb Chambers BMW of Sudbury serves shoppers in Sudbury, Massachusetts, from 128 Boston Post Road, Rte 20. The store receives vehicles on a rolling basis, so shoppers can use the search inventory link for current listings and review the trim, drivetrain, and pricing details associated with each vehicle.

For a more complete purchase plan, shoppers can explore financing through the dealership’s pre-approval process, value a current vehicle with the trade-in tool, and contact Herb Chambers BMW of Sudbury at (508) 978-2098 for assistance arranging a visit.

What to Weigh Before Buying

Trim selection changes the 8 Series Gran Coupe’s engine, drivetrain, fuel requirement, efficiency, acceleration, and starting MSRP. The 840i emphasizes rear-wheel-drive grand touring, the 840i xDrive adds all-wheel drive, and the M850i xDrive pairs all-wheel drive with the lineup’s highest output and quickest stated 0-60 time of 3.7 seconds.

Fuel planning is also worth considering. The 840i and 840i xDrive are rated at 21 city MPG and 29 highway MPG, while the M850i xDrive is rated at 17 city MPG and 24 highway MPG. Comparing cargo needs, the 15.5-cubic-foot rear cargo area, exterior dimensions, and preferred drivetrain can help narrow the choice.