2018 BMW 6 Series Reviews, Pricing & Specs

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Front-quarter view. thumbnail

$81,400 to $124,300

What owners say

AI Summary · 5 reviews

"Owners of the 2018 BMW 6 Series mostly rave about its attractive design and strong performance, enjoying its luxurious ride and sporty handling. Many appreciate the reliability of the 640i model, especially compared to the V8 650i. However, there are concerns about potential trouble with specific models like the 650 and M6. Overall, the car is highly recommended for its style and value in the luxury sedan market."

4.8
5 reviews
5
4
3
2
1

A very nice vehicle with very few condition issues. Drove great on the test drive.

March 11, 2026

The 650i is one of the most attractive designs BMW has on the road. Beautiful from every angle. Rides like a Luxury Sedan and corners like a sports car. I will definitely buy another one when this one wears out.

March 1, 2020

The car has excellent options, carbon fiber trim, active cruise control and B&O sound system. Most 6 series are very good bang for buck considering they generally started at around 100k and are going from 20-40k now. The Audi A7 and S7 are very comparable but the 6 series has them beat in my opinion.

November 8, 2023

Trims & specs

650i xDrive Convertible AWD specifications

Base MSRP

$101,300

Seating

4

Engine

4.4L 445 hp V8

Cargo Capacity

10.6 cu ft

Combined MPG

20

Drivetrain

AWD

650i Gran Coupe RWD specifications

Base MSRP

$93,000

Seating

5

Engine

4.4L 445 hp V8

Cargo Capacity

16.2 cu ft

Combined MPG

21

Drivetrain

RWD

Alpina B6 xDrive Gran Coupe AWD specifications

Base MSRP

$124,300

Seating

5

Engine

4.4L 600 hp V8

Cargo Capacity

16.2 cu ft

Combined MPG

20

Drivetrain

AWD

650i xDrive Gran Coupe AWD specifications

Base MSRP

$96,000

Seating

5

Engine

4.4L 445 hp V8

Cargo Capacity

16.2 cu ft

Combined MPG

20

Drivetrain

AWD

650i xDrive Coupe AWD specifications

Base MSRP

N/A

Seating

N/A

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

640i Convertible RWD specifications

Base MSRP

$86,700

Seating

4

Engine

3.0L 315 hp I6

Cargo Capacity

10.6 cu ft

Combined MPG

24

Drivetrain

RWD

640i xDrive Convertible AWD specifications

Base MSRP

$89,700

Seating

4

Engine

3.0L 315 hp I6

Cargo Capacity

10.6 cu ft

Combined MPG

23

Drivetrain

AWD

640i Gran Coupe RWD specifications

Base MSRP

$81,400

Seating

5

Engine

3.0L 315 hp I6

Cargo Capacity

16.2 cu ft

Combined MPG

24

Drivetrain

RWD

650i Convertible RWD specifications

Base MSRP

$98,300

Seating

4

Engine

4.4L 445 hp V8

Cargo Capacity

10.6 cu ft

Combined MPG

21

Drivetrain

RWD

640i xDrive Gran Coupe AWD specifications

Base MSRP

$84,400

Seating

5

Engine

3.0L 315 hp I6

Cargo Capacity

16.2 cu ft

Combined MPG

23

Drivetrain

AWD

Pricing trends

MSRP range

$81,400 - $124,300

Current avg. market price

$35,590

Trending up by 2.1% this month

June 2026 - July 2026

See full price trends

$81,400 to $124,300