G15 · 8 Series

What the BMW G15 Chassis Is

The BMW G15 designates the two-door coupe body style of BMW's revived 8 Series line, produced from 2019 through 2026. It sits atop the CLAR (Cluster Architecture) platform shared across BMW's contemporary rear- and all-wheel-drive lineup, and represents a return to the grand-touring flagship concept that the E31 8 Series pioneered decades earlier. The G15 coupe was joined in the range by the G16 Gran Coupe and G14 convertible, but the coupe remains the purest expression of the line's fastback proportions and performance intent.

You can confirm any chassis assignment through our VIN decoder, and trace how the 8 Series fits into BMW's broader lineage on the BMW DNA page.

The Models & Body Styles in This Generation

For the US market, the G15 coupe was offered in three configurations that span the range from smooth six-cylinder cruiser to twin-turbo V8 performer:

• 840i Coupe — rear-wheel-drive, inline-six power
• 840i xDrive Coupe — the same six paired with all-wheel drive
• M850i xDrive Coupe — the V8-powered performance flagship of the line

The G15 shares its spiritual predecessor's grand-tourer mission with the earlier E63 coupe and E64 convertible; enthusiasts researching that older 6 Series can compare the E63 and E64 to appreciate how far BMW's flagship coupe formula has evolved.

Engines & Drivetrains Offered

The 840i models use BMW's B58 3.0-liter turbocharged inline-six, a smooth and tunable powerplant widely praised for its refinement and reliability. The M850i xDrive steps up to the N63 4.4-liter twin-turbo V8, delivering effortless torque and genuine sports-car pace despite the car's substantial curb weight. All G15 models pair with the ZF eight-speed automatic, and xDrive all-wheel drive is standard on both the M850i and the all-wheel-drive 840i variant.

Ownership: Strengths and Things to Watch

As a used purchase, the G15 delivers exceptional value relative to its original sticker price. Buyers gravitate toward it for these reasons:

• Grand-touring comfort with a genuinely usable long-distance ride
• Strong drivetrains, especially the durable B58 six
• Modern technology including iDrive 7, adaptive suspension, and driver aids

Prospective owners should budget for premium-car maintenance: large staggered tires, adaptive dampers, and V8-specific service on the M850i. As with any turbocharged BMW, keeping up with oil changes and cooling-system care preserves long-term reliability. A pre-purchase inspection and full service history remain the smartest ways to buy any G15.