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BMW 8 Series vs BMW Z4

840i Coupe - M40i Roadster

BMW 8 Series
BMW 8 Series
840i Coupe
From $94,500
View Full Specs →
VS
BMW Z4
BMW Z4
M40i Roadster
From $68,400
★ Our Pick
View Full Specs →
At a Glance
Power
335hp @ 5000
382hp @ 5800
Torque
368lb-ft @ 1600
369lb-ft @ 1800
Engine
3.0 L/183cc
3.0 L/183cc

Choosing between the BMW 8 Series and the BMW Z4 is one of the most common decisions car buyers in the United States face. The BMW 8 Series delivers 335hp @ 5000 while the BMW Z4 produces 382hp @ 5800. Pricing starts at $94,500 for the 8 Series and $68,400 for the Z4. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.

Specification
BMW 8 SeriesFrom $94,500
BMW Z4From $68,400
Performance
Power Output (hp)
335hp @ 5000
382hp @ 5800
Torque (lb-ft)
368lb-ft @ 1600
369lb-ft @ 1800
Engine & Drivetrain
Engine Capacity
3.0 L/183cc
3.0 L/183cc
Engine Layout
Inline
Inline
Cylinders
6
6
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
8
6
Drive Wheels
Rear Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy - City (mpg)
21mpg
23mpg
Fuel Economy - Highway (mpg)
29mpg
29mpg
Fuel Tank Capacity (gal)
18gal
13.7gal
Dimensions
Length (in)
191.1in
170.7in
Width (in)
74.9in
73.4in
Height (in)
52.8in
51.4in
Wheelbase (in)
111.1in
97.2in
Curb Weight (lbs)
3933lbs
3543lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard

Which Wins?

Overall Winner
BMW Z4
1 / 4 categories
Performance
Tied
Fuel Economy
Tied
Value
Z4
Practicality
Tied
BMW 8 Series
+Well-rounded specification
-Higher starting price
BMW Z4
+Lower starting price ($68,400)
-Few notable weaknesses
Frequently Asked Questions
Which has more power, the 8 Series or Z4?
The 8 Series produces 335hp @ 5000 and 368lb-ft @ 1600 of torque while the Z4 delivers 382hp @ 5800 and 369lb-ft @ 1800 of torque. They produce similar power outputs.
What is the price difference between the 8 Series and Z4?
The 8 Series starts from $94,500 and the Z4 from $68,400. The Z4 is cheaper by $26,100 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the 8 Series or the Z4?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.

BMW 8 Series Variants

All 8 Series Specs →

BMW Z4 Variants

All Z4 Specs →

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