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2020 BMW 8 Series Convertible 840i

All BMW 8 Series Convertible G14 trims (2019–present) → All BMW 8 Series Convertible generations →
2020 BMW 8 Series Convertible – front Unverified
Photo: 2019 BMW 840d xDrive Automatic 3.0 Front by Vauxford, CC BY-SA 4.0, via Wikimedia Commons
Photos show the G14 (G14, 2019–present); trim, color, and model year may differ.
All photo credits
  1. Photo: 2019 BMW 840d xDrive Automatic 3.0 Front by Vauxford, CC BY-SA 4.0, via Wikimedia Commons
  2. Photo: BMW M8 Competition xDrive Cabriolet (F91, Facelift) – f 03102025 by © M 93, CC BY-SA 3.0 de, via Wikimedia Commons
  3. Photo: 2023 BMW M8 Convertible by Calreyn88, CC0, via Wikimedia Commons
  4. Photo: 2019 BMW 840d xDrive Automatic 3.0 Rear by Vauxford, CC BY-SA 4.0, via Wikimedia Commons
  5. Photo: BMW 8er Photo 2020 Free image (49646976043) by Autobilder Gratis, CC BY 2.0, via Wikimedia Commons

The 2020 BMW 8 Series Convertible 840i is a 335-hp 3.0-liter turbocharged inline-6 convertible with an 8-speed sport automatic and rear-wheel drive. It starts at $97,400 MSRP and is rated at 25 mpg combined.

It makes 335 horsepower at 5,000 rpm and 368 lb-ft of torque at 1600 rpm. EPA fuel-economy estimates are 23 mpg city and 30 mpg highway (25 mpg combined).

The 8 Series Convertible measures 191.1 inches long on a 111.1-inch wheelbase and has a curb weight of 4,211 lb.

Spec Value
Vehicle
Body TypeConvertible
PowertrainGas
Price
MSRP$97,400
MSRP with Destination$98,395
Destination Charge$995
Engine
Engine Type3.0L TwinPower Turbo DOHC Inline 6-Cylinder (B58)
Displacement3 L
Horsepower335 hp @ 5,000 rpm
Torque368 lb-ft @ 1600 rpm
Drivetrain
Drive TypeRWD
Transmission
Transmission8-Speed Sport Automatic
Fuel Economy
City23 MPG
Highway30 MPG
Combined25 MPG
Tank Capacity18 gal
Tires & Wheels
Tires Front245/45R18
Tires Rear275/40R18
Dimensions & Weight
Length191.1 in
Width84.1 in
Height52.7 in
Wheelbase111.1 in
Ground Clearance4.6 in
Cargo Volume12.4 ft³
Curb Weight4,211 lbs

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Safety & Recalls

NCAP safety ratings

Tested, but no star ratings were published (2020 BMW 8 Series 2 DR RWD).

Recalls

No recalls on file with NHTSA for the 2020 BMW 8 SERIES.

4 owner complaints to NHTSA for the 2020 BMW 8 SERIES

Owner Complaints

4 owner complaints filed with NHTSA for the 2020 BMW 8 SERIES. See all on nhtsa.gov

Most-cited areas
Electrical System1
Engine1
Hydraulic1
Service Brakes1
Steering1
Unknown Or Other1
A complaint can cite more than one area.
Most recent complaints
Oct 31, 2024 · Service Brakes, Hydraulic
“The contact owns a 2020 BMW 840I. The contact stated while driving 30 MPH, the vehicle abruptly decelerated and nearly came to a complete stop. The contact was able to pull to the shoulder of the…”
Aug 21, 2024 · Electrical System, Engine
“My vehicle mileage was about 50,000 miles and well maintained by BMW dealership in my area. I was driving to work when suddenly my vehicle alerted me to a fault on display panel showing a power supply…”
Mar 10, 2021 · Unknown Or Other
“THE NAVIGATION WILL STATE THE PLACE THAT YOU ARE PHYSICALLY LOCATED ACCURATELY. FOR EXAMPLE WHEN I WAS AT BMW IN DELRAY BEACH FL THE NAVIGATION TELLS YOU THAT YOU ARE AT THE LOCATION. WHEN YOU PUT IN…”
Mar 25, 2020 · Steering
“THE LANE KEEPING DRIVING ASSISTANCE/DRIVING ASSISTANCE PRO ON THE 2020 BMW 840I GRAN COUPE PRODUCES A SUDDEN LOUD "BARK" WHEN THE ASSISTANCE SYSTEM LOSES SIGHT OF THE LANE MARKERS. THAT OFTEN HAPPENS…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2020 BMW 8 SERIES. US-market vehicles only; data cached for up to 7 days.

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