X

2020 BMW M340i: A hotter, but not hottest 3 Series sedan

A more powerful I6 engine and chassis improvements in the M340i amp up BMW's new 3 Series sedan.

Jon Wong
Jon Wong was a reviews editor for CNET Cars. He test drove and wrote about new cars and oversaw coverage of automotive accessories and garage gear. In his spare time, he enjoys track days, caring for his fleet of old Japanese cars and searching for the next one to add to his garage.
Jon Wong
2020-bmw-m340i-1
1 of 52 Nick Miotke/Roadshow

Following up the arrival of the new 330i sedan for 2019, BMW is following that up with a slightly more performance oriented M340i for 2020. 

2020-bmw-m340i-2
2 of 52 Nick Miotke/Roadshow

Unlike the base 330i that uses a turbocharged I4, the M340i employs a 3.0-liter turbocharged I6 making 382 horsepower and 369 pound-feet of torque.

2020-bmw-m340i-3
3 of 52 Nick Miotke/Roadshow

The engine works exclusively with an eight-speed automatic transmission.

2020-bmw-m340i-4
4 of 52 Nick Miotke/Roadshow

According to BMW, the 2020 M340i can get to 60 mph in 4.4 seconds.

2020-bmw-m340i-5
5 of 52 Nick Miotke/Roadshow

To improve handling, the M340i receives stiffer springs, thicker antiroll bars, more wheel camber, and a torque vectoring rear differential. 

2020-bmw-m340i-6
6 of 52 Nick Miotke/Roadshow

A bigger M brake package is also standard on the M340i.

2020-bmw-m340i-7
7 of 52 Nick Miotke/Roadshow

With optional adaptive shocks and 19-inch Michelin Pilot Sport 4S tires, the M340i's reflexes are a notch above the likes of the Audi S4, Infiniti Q50, and Mercedes-AMG C43.

2020-bmw-m340i-8
8 of 52 Nick Miotke/Roadshow

Visually setting the M340i apart from the standard 330i, it gets more aggressive bumpers, a gray-painted grille surround, trunk lip spoiler, and split-spoke wheels.

2020-bmw-m340i-9
9 of 52 Nick Miotke/Roadshow

The interior enjoys standard sport seats, an M leather steering wheel, and aluminum trim.

2020-bmw-m340i-10
10 of 52 Nick Miotke/Roadshow

The 2020 BMW M340i begins at $54,000, not including $995 for destination.

2020-bmw-m340i-11
11 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-12
12 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-13
13 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-14
14 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-15
15 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-16
16 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-17
17 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-18
18 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-19
19 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-20
20 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-21
21 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-22
22 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-23
23 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-24
24 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-25
25 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-26
26 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-27
27 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-28
28 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-29
29 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-30
30 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-31
31 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-32
32 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-33
33 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-34
34 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-35
35 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-36
36 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-37
37 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-38
38 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-39
39 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-40
40 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-41
41 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-42
42 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-43
43 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-44
44 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-45
45 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-46
46 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-47
47 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-48
48 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-49
49 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-50
50 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-51
51 of 52 Nick Miotke/Roadshow
2020-bmw-m340i-52
52 of 52 Nick Miotke/Roadshow

More Galleries

My Favorite Shots From the Galaxy S24 Ultra's Camera
A houseplant

My Favorite Shots From the Galaxy S24 Ultra's Camera

20 Photos
Honor's Magic V2 Foldable Is Lighter Than Samsung's Galaxy S24 Ultra
magic-v2-2024-foldable-1383

Honor's Magic V2 Foldable Is Lighter Than Samsung's Galaxy S24 Ultra

10 Photos
The Samsung Galaxy S24 and S24 Plus Looks Sweet in Aluminum
Samsung Galaxy S24

The Samsung Galaxy S24 and S24 Plus Looks Sweet in Aluminum

23 Photos
Samsung's Galaxy S24 Ultra Now Has a Titanium Design
The Galaxy S24 Ultra in multiple colors

Samsung's Galaxy S24 Ultra Now Has a Titanium Design

23 Photos
I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites
img-0368.jpg

I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites

34 Photos
17 Hidden iOS 17 Features You Should Definitely Know About
Invitation for the Apple September iPhone 15 event

17 Hidden iOS 17 Features You Should Definitely Know About

18 Photos
AI or Not AI: Can You Spot the Real Photos?
img-1599-2.jpg

AI or Not AI: Can You Spot the Real Photos?

17 Photos