Which is better: 2018 BMW 650i or 2027 Porsche 911?

It depends on priorities. OpenDealer compares 2018 BMW 650i vs 2027 Porsche 911 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 650i or 2027 Porsche 911?

Based on starting MSRP, the 2018 BMW 650i starts lower at $98,300. Live Porsche 911 listings start at $113,998.

Which has better startingMsrp: 2018 BMW 650i or 2027 Porsche 911?

The 2018 BMW 650i leads on startingMsrp in this comparison (98,300).

Which has better combinedMpg: 2018 BMW 650i or 2027 Porsche 911?

The 2027 Porsche 911 leads on combinedMpg in this comparison (21).

Which has better horsepower: 2018 BMW 650i or 2027 Porsche 911?

The 2027 Porsche 911 leads on horsepower in this comparison (701).

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BMW 650i vs Porsche 911

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

2018 BMW 650i

Trim

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2027 Porsche 911

Trim

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Overview

Spec	BMW 650i650i	Porsche 911Carrera
Selected trim	650i	Carrera
Body style	Convertible	Coupe
Drivetrain	rear wheel drive	rear wheel drive
Fuel type	premium unleaded (required)	premium unleaded (required)
Transmission	8-speed shiftable automatic	8-speed automatic
Engine type	gas	gas
Model year	2018	2027

Pricing & market

Spec	BMW 650i650i	Porsche 911Carrera
MSRP	$98,300 (best)	$135,500
Lowest listing price	—	$113,998 (best)
Median listing price	—	$204,825 (best)
Highest listing price	—	$469,998 (best)
For sale now	0	6 (best)

Fuel economy & range

Spec	BMW 650i650i	Porsche 911Carrera
Combined MPG	20 MPG	21 MPG (best)
City MPG	17 MPG	18 MPG (best)
Highway MPG	25 MPG	25 MPG
Fuel tank	18.5 gal (best)	17 gal

Performance

Spec	BMW 650i650i	Porsche 911Carrera
Horsepower	445 hp (best)	388 hp
Torque	480 lb-ft (best)	331 lb-ft
Engine size	4.4 L (best)	3 L
Cylinders	V8	flat 6

Size & capability

Spec	BMW 650i650i	Porsche 911Carrera
Seating	4 seats	4 seats
Doors	2	2
Cargo volume	11 cu ft (best)	—
Curb weight	4,490 lbs	3,342 lbs (best)
Ground clearance	4.8 in (best)	—
Wheelbase	112.4 in (best)	97 in
Length	192.8 in (best)	179 in
Width	74.6 in (best)	73 in
Height	53.7 in (best)	51 in

Safety & recalls

Spec	BMW 650i650i	Porsche 911Carrera
Open recalls (YMM scope)	None reported	None reported

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 650i	Porsche 911
1	650i $98,300 MSRP(Currently comparing)	Carrera $135,500 MSRP(Currently comparing)
2	—	Carrera $149,400 MSRP
3	—	Carrera T $148,000 MSRP
4	—	Carrera T $161,900 MSRP
5	—	Carrera S $156,200 MSRP
6	—	Carrera S $170,100 MSRP
7	—	Carrera 4S $164,500 MSRP
8	—	Carrera 4S $178,400 MSRP
9	—	4S $180,200 MSRP
10	—	Carrera GTS $181,000 MSRP
11	—	Carrera GTS $194,900 MSRP
12	—	Carrera 4 GTS $189,300 MSRP
13	—	Carrera 4 GTS $203,300 MSRP
14	—	911 4 GTS $203,300 MSRP
15	—	GT3 $235,800 MSRP
16	—	GT3 $235,800 MSRP
17	—	GT3 $273,000 MSRP
18	—	Turbo S $270,300 MSRP
19	—	Turbo S $284,300 MSRP

Live inventory

Porsche 9116 for sale

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