2021 BMW 840i xDrive Convertible

Compact Sedan Premium
BMW 840i xDrive Convertible 2021
23MPG Combined
1 Trim
← 2020 2021 2022 →
Updated February 27, 2026

The 2021 BMW 840i xDrive Convertible is a Compact Sedan that delivers 23 combined MPG. Here’s everything you need to know about this vehicle, from fuel economy to safety ratings.

2021 BMW 840i xDrive Convertible Specifications

SpecValue
Combined MPG23 combined MPG
City MPG20
Highway MPG27
Body StyleCompact Sedan
Fuel TypePremium
DriveAWD
Available Trims1

Annual Fuel Cost

Based on EPA estimates, the 2021 BMW 840i xDrive Convertible costs approximately $2,550 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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