BMW 640i vs BMW M4
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2027 BMW M4
Overview
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| Selected trim | 640i | Coupe |
| Body style | Convertible | Coupe |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 6-speed manual |
| Engine type | gas | gas |
| Model year | 2018 | 2027 |
Pricing & market
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| MSRP | $86,700 | $82,200 (best) |
| Lowest listing price | — | $65,999 (best) |
| Median listing price | — | $69,999 (best) |
| Highest listing price | — | $107,192 (best) |
| For sale now | 0 | 5 (best) |
Fuel economy & range
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| Combined MPG | 23 MPG (best) | 19 MPG |
| City MPG | 20 MPG (best) | 16 MPG |
| Highway MPG | 29 MPG (best) | 23 MPG |
| Fuel tank | 18.5 gal (best) | 15.6 gal |
Performance
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| Horsepower | 315 hp | 473 hp (best) |
| Torque | 330 lb-ft | 406 lb-ft (best) |
| Engine size | 3 L | 3 L |
| Cylinders | I6 | I6 |
Size & capability
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| Seating | 4 seats | 4 seats |
| Doors | 2 | 2 |
| Cargo volume | 11 cu ft | 15.5 cu ft (best) |
| Payload | — | 769 lbs (best) |
| Curb weight | 4,250 lbs | 3,829 lbs (best) |
| Ground clearance | 4.8 in (best) | 4.7 in |
| Wheelbase | 112.4 in | 112.5 in (best) |
| Length | 192.8 in (best) | 189.1 in |
| Width | 74.6 in (best) | 74.3 in |
| Height | 53.7 in | 55 in (best) |
Safety & recalls
| Spec | BMW 640i640i | BMW M4Coupe |
|---|---|---|
| Open recalls (YMM scope) | 2 | None reported (best) |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | BMW 640i | BMW M4 |
|---|---|---|
| 1 | 640i $86,700 MSRP(Currently comparing) | Coupe $82,200 MSRP(Currently comparing) |
| 2 | — | Competition $86,600 MSRP |
| 3 | — | Competition xDrive $91,700 MSRP |
| 4 | — | Competition xDrive $98,600 MSRP |
Live inventory
BMW M45 for sale
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Used2023 BMW M4
Competition xDrive
18,501 mi$76,418INFINITI Greenville
Greenville, SC
Used2021 BMW M4
Competition
Portimao Blue Metallic•black25,514 mi$65,999J&S AutoHaus Mt Holly
Mt Holly, NJ
Used2024 BMW M4
Base
Alpine White•black12,705 mi$69,999J&S AutoHaus Mt Holly
Mt Holly, NJ
Used2021 BMW M4
Competition
Toronto Red Metallic•Ivory White7,103 mi$68,583Grove City Ford
Grove City, PA
New2027 BMW M4
Competition xDrive
Skyscraper Gray•Tartufo16 mi$107,192BMW Santa Barbara
Santa Barbara, CA
BMW 640i vs BMW M4 FAQ
- Which is better: 2018 BMW 640i or 2027 BMW M4?
- It depends on priorities. OpenDealer compares 2018 BMW 640i vs 2027 BMW M4 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2018 BMW 640i or 2027 BMW M4?
- Based on starting MSRP, the 2027 BMW M4 starts lower at $82,200. Live BMW M4 listings start at $65,999.
- Which has better startingMsrp: 2018 BMW 640i or 2027 BMW M4?
- The 2027 BMW M4 leads on startingMsrp in this comparison (82,200).
- Which has better combinedMpg: 2018 BMW 640i or 2027 BMW M4?
- The 2018 BMW 640i leads on combinedMpg in this comparison (23).
- Which has better horsepower: 2018 BMW 640i or 2027 BMW M4?
- The 2027 BMW M4 leads on horsepower in this comparison (523).