2025 BMW 8 Series Convertible

Is the 2025 BMW 8 Series Convertible a Good Car?

"Maybe it's just us, but shouldn't the 8 Series have sexier styling to justify its position at the top of BMW's lineup? In any case, the available twin-turbo V8 provides a fantastic soundtrack for top-down cruising, so we'll salute BMW for that."—Ranked #5 out of 6 Premium Luxury Convertibles

Which 2025 BMW 8 Series Convertible Should I Buy?

MotorDonkey's proprietary vehicle data identifies every significant version of each model so that you can compare and decide. Ordered by price from low to high, here are the versions of the 2025 BMW 8 Series Convertible that you need to be aware of, along with our expert analysis and recommendations.

1. 2025 BMW 840i Convertible (3.0T Rear-Wheel Drive)

• Base Price: $100,500
• MPG Combined: 24
• Drive Type: Rear-wheel drive
• Engine: 3.0-liter inline-6
• Aspiration: Turbocharged
• Transmission: 8-speed automatic
• Horsepower: 335 
• Torque: 369 lb⁠-⁠ft
• 0-60: 5.0 sec
• Weight: 4,156 lbs
• Length: 191.2 in

Just like the coupe, the entry-level 840i convertible has a less powerful version of BMW's excellent turbocharged inline-6 than do many other models. But even if it had the full-strength version, our advice would remain the same to both coupe and convertible shoppers: Skip the six and get the M850i with its stupendous V8.

2. 2025 BMW 840i xDrive Convertible (3.0T All-Wheel Drive)

• Base Price: $103,500
• MPG Combined: 24
• Drive Type: All-wheel drive
• Engine: 3.0-liter inline-6
• Aspiration: Turbocharged
• Transmission: 8-speed automatic
• Horsepower: 335 
• Torque: 369 lb⁠-⁠ft
• 0-60: 4.6 sec
• Weight: 4,266 lbs
• Length: 191.2 in

All-wheel-drive convertibles tend to confuse us unless they are front-wheel-drive cars by default, which the 8 Series is not. Why would you want AWD in a fair-weather performance car? As it happens, our pick for an 8 Series convertible has AWD, but only because the V8-powered M850i doesn't come with rear-wheel drive. Long story short, we would pass on this AWD six-cylinder version — you really want to hear that V8 when the top's down, not the six.

3. 2025 BMW M850i xDrive Convertible (4.4T All-Wheel Drive)

• Base Price: $116,000
• MPG Combined: 19
• Drive Type: All-wheel drive
• Engine: 4.4-liter V8
• Aspiration: Turbocharged
• Transmission: 8-speed automatic
• Horsepower: 523 
• Torque: 553 lb⁠-⁠ft
• 0-60: 3.9 sec
• Weight: 4,691 lbs
• Length: 191.2 in

We're a broken record when it comes to 8 Series recommendations, but our message is simple: You want the V8 and you should get the V8. The M850i is the version to have, whether it's a coupe or a convertible you're after.