BMW 3 Series vs BMW 4 Series Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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User Ranking Drivers and owners ranked these cars in 9 categories.

New Car Pricing New listing price comparison and analysis.

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
MSRP
$46,550
Invoice
$43,790
Average Price Paid
$44,087
186 listings nationwide

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2021 BMW 4 Series
430i Convertible RWD
MSRP
$53,100
Invoice
$49,885
Average Price Paid
$52,153
439 listings nationwide

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Pricing Analysis Price analysis based on recent sales data applied to current trim without options.

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
Fair Price
$44,915
Good Price
$43,042
Great Price
$41,972
2021 BMW 4 Series
430i Convertible RWD
Fair Price
$52,684
Good Price
$50,676
Great Price
$49,528

Used Car Pricing Used listing price comparison and analysis.

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
CarGurus Instant Market Value
$52,552
10 listings nationwide

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2021 BMW 4 Series
430i Convertible RWD
CarGurus Instant Market Value
$61,380
2 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
Stephen Edelstein Test Drive Review:

Early generations of the BMW 3 Series redefined what a luxury car could be, justifying their prestige badge with sporty driving dynamics and impeccable engineering. BMW changed the lux...

2021 BMW 4 Series
430i Convertible RWD
Stephen Edelstein Test Drive Review:

The 2021 BMW 4 Series represents how, for better or worse, BMW has changed. The 4 Series name has been around since the 2014 model year when it was introduced for the former 3 Series c...

No Data Available
  • Look and Feel 6
  • Performance 7
  • Form & Function 7
  • Technology 9
  • Safety 7
  • Cost-Effectiveness 5
No Data Available
  • Look and Feel 6
  • Performance 7
  • Form & Function 7
  • Technology 9
  • Safety 6
  • Cost-Effectiveness 6

User Reviews Reviews from CarGurus users who have driven or owned the car.

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
35
GuruXPZRK writes:
Front Seats Ranked 2018 BMW 3 Series 340i xDrive Sedan AWD worse.
"Seats are a bit softer and back seats have more room."
Would Buy Ranked 2018 BMW 3 Series 340i xDrive Sedan AWD worse.
"Handling and performance are top 2 reasons. "
2021 BMW 4 Series
430i Convertible RWD
No User Reviews

Specs

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
2021 BMW 4 Series
430i Convertible RWD
Powertrain 8-Speed Automatic 8-Speed Automatic
Drivetrain
AWD
RWD
Fuel Economy, City
22 MPG
24 MPG
Fuel Economy, Highway
30 MPG
33 MPG
Fuel Tank Volume 10.6 gal 15.6 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
--
255 hp @ 5,000 RPM
Torque
--
294 lb-ft @ 1,550 RPM
Cylinders
4 cylinders
4 cylinders
Compression Ratio
10.2:1
10.2:1
Displacement
2,000 cc
2,000 cc
Bore x Stroke
3.23 in x 3.72 in
3.23 in x 3.72 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags Standard Standard
Curtain Airbags Standard --
NHTSA Crash Test Results
Comfort and Convenience
Sunroof/Moonroof Standard --
Air Conditioning Standard Standard
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Standard
Passenger Power Seats Standard Standard
Interior
Maximum Seating 5 seats 4 seats
Front Legroom 42 in 41.8 in
Back Legroom 35.2 in 32.5 in
Payload and Towing
Cargo Volume 13.2 cu ft 9 cu ft
Maximum Payload 891 lbs 756 lbs
Exterior
Length 185.7 in 187.9 in
Width 81.4 in 81.9 in
Height 56.9 in 54.6 in
Wheelbase 112.2 in 112.2 in

Available Options

2021 BMW 3 Series
300e xDrive Hybrid Plug-in AWD
2021 BMW 4 Series
430i Convertible RWD

Exterior Colors

  • Alpine White
  • Arctic Race Blue Metallic
  • Black Sapphire Metallic
  • Bluestone Metallic
  • Jet Black
  • Mineral White Metallic
  • PORTIMAO Blue Metallic
  • San REMO Green Metallic
  • Sunset Orange Metallic

Option Packages

  • Heated Front Seats
  • Neck Warmer
  • Adaptive M Suspension
  • Convenience Package
  • Driving Assistance Professional Package
  • Dynamic Handling Package
  • Executive Package
  • Harman/Kardon Surround Sound System
  • Live Cockpit Pro W/NAVI
  • M Sport Brakes W/Blue Calipers
  • M Sport Brakes W/Red Calipers
  • M Sport Package
  • Parking Assistance Package
  • Premium Package
  • Wireless Charging
  • Head-Up Display
  • Black W/Blue Stitching, VERNASCA Leather Upholstery
  • Black W/Oyster Stitching, VERNASCA Leather Upholstery
  • Canberra Beige/Black, VERNASCA Leather Upholstery
  • Cognac W/Contrast Stitch, VERNASCA Leather Upholstery
  • Mocha W/Contrast Stitch, VERNASCA Leather Upholstery
  • Oyster W/Contrast Stitch, VERNASCA Leather Upholstery
  • TACORA Red, VERNASCA Leather Upholstery
  • Wheels: 19" X 8" Double-Spoke Bi-Color Orbit Grey

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