2025 BMW 8 Series

The 2025 BMW 8 Series brings grand-touring performance and convertible design to Herb Chambers BMW of Boston in Boston, MA. This page covers the model’s trim range, powertrains, efficiency, dimensions, pricing, and key considerations for shoppers comparing luxury BMW vehicles. The lineup includes the rear-wheel-drive 840i, all-wheel-drive 840i xDrive, and performance-focused M850i xDrive, with output ranging from 335 to 523 horsepower. Shoppers can review current BMW offerings through the dealership’s live inventory and connect with the team about finding the right configuration for their plans.

Starting MSRP

$101,400

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

Convertible

How the 2025 BMW 8 Series Compares With BMW’s Lineup

The 2025 BMW 8 Series starts at $101,400, with MSRP excluding tax, title, registration and dealer fees. Pricing, power, fuel economy, and drivetrain help distinguish this grand-touring convertible from other BMW models in the same size class.

Compared with the 2025 BMW 4 Series, the 8 Series starts at $101,400 versus $61,150 and offers 335 to 523 horsepower versus 255 horsepower. The 4 Series may suit shoppers focused on a lower starting price, while the 8 Series emphasizes greater available power; the 4 Series is all-wheel drive and requires premium unleaded fuel.

Compared with the 2025 BMW Z4, the 8 Series starts at $101,400 versus $54,500 and produces 335 to 523 horsepower versus 255 to 382 horsepower. The Z4 may appeal to shoppers seeking a lower-priced rear-wheel-drive convertible, while the 8 Series offers a broader power range and rear- or all-wheel-drive configurations; both use premium unleaded fuel, with the 8 Series fuel requirement varying by trim.

2025 BMW 8 Series Specifications and Configuration

The 2025 BMW 8 Series is a convertible with an eight-speed automatic transmission and either an inline or V engine layout. Across its three trims, engine displacement ranges from 2,998 to 4,395 cc, with six- or eight-cylinder powertrains producing 369 to 553 lb-ft of torque.

Acceleration ranges from 3.9 to 5 seconds from 0 to 60 mph, while city fuel economy ranges from 17 to 21 MPG and highway fuel economy ranges from 24 to 29 MPG. Premium unleaded is recommended for the 840i and 840i xDrive and required for the M850i xDrive.

The model measures 191.2 inches long, 74.9 inches wide, and 53 inches high, with a 111.1-inch wheelbase and 12.4 cubic feet of cargo space behind the rear seats. Curb weight ranges from 4,156 to 4,691 pounds, and the fuel tank holds 18 gallons.

Buying a 2025 BMW 8 Series in Boston

Herb Chambers BMW of Boston serves Boston-area shoppers considering the 2025 BMW 8 Series and other BMW models. The store receives vehicles on a rolling basis, so shoppers can review live options through the search inventory page.

Questions about trim selection, drivetrain, premium-fuel requirements, or the difference between the 840i and M850i xDrive can be addressed by the dealership team at (617) 271-2376. Financing and trade-in planning can also be part of the purchase conversation.

What to Weigh Before Buying

Trim selection changes the 8 Series experience. The 840i pairs 335 horsepower with rear-wheel drive, the 840i xDrive keeps 335 horsepower with all-wheel drive, and the M850i xDrive increases output to 523 horsepower with all-wheel drive.

Fuel economy and acceleration also vary by configuration. Buyers prioritizing the quickest 0-to-60 time may focus on the M850i xDrive’s 3.9-second figure, while shoppers balancing performance with efficiency may compare the 840i’s 21 city and 29 highway MPG ratings.

Before making a decision, consider how often the vehicle will be driven with the top down, whether all-wheel drive is important, and how the available cargo space fits everyday needs.