BMW Z4 G29 M40i (382 Hp) Steptronic


Overall Rating

8.1 / 10
Safety N/A / 5
Not Rated
Engine 4.7 / 5
Value 3.5 / 5
Performance 4.5 / 5
Comfort 4.0 / 5
People\'s Opinion N/A / 5
Not Rated

BMW Z4:

The first generation of the BMW Z4 consists of the BMW E85 and BMW E86 sports cars. The E85/E86 generation was produced from 2002 to 2008. The E85/E86 replaced the Z3 and is the third model in the BMW Z Series. Initial models were in the roadster body style, with the coupé body style being added in 2006. In February 2009, the BMW Z4 began production as the successor to the E85/E86.
As was its Z3 predecessor, the E85/E86 was manufactured in Greer, South Carolina. The M model, the Z4 M, is powered by the S54 straight-six engine....(Read more on Wikipedia)

G29 Overview:

BMW Z4 (G29). With 500 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~9.8 l/100km). With a weight of 1562 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. The top speed reaches 250 km/h. A two-seater convertible designed for open-top driving pleasure. Seating for 2 makes it ideal for daily use.

Safety Rating
Not rated
Euro NCAP Year N/A
Adult Occupant N/A
Stars N/A
Expert Note:
The BMW Z4 G29 generation was not officially tested by Euro NCAP. However, BMW vehicles typically feature robust safety structures and advanced driver assistance systems.

M40i (382 Hp) Steptronic Verdict:

Rating 5 stars

Performance Verdict

The most powerful variant, providing truly exceptional performance and an even more aggressive character for enthusiasts.

Fuel Economy

Acceptable fuel economy for its power output, though slightly higher than the 340 Hp version at 9 l/100 km combined.

Best Use Case: Track / Enthusiast Driving

Pros and Cons:

Pros:

  • • Engaging driving dynamics and precise steering
  • • Powerful and efficient engine options (especially M40i)
  • • Stylish and modern exterior design
  • • High-quality interior materials and technology
  • • Comfortable for a roadster, suitable for longer journeys

Cons:

  • • Limited practicality with only two seats and modest trunk space
  • • Firm ride quality may not appeal to all drivers
  • • Premium pricing compared to some rivals
  • • No manual transmission option for the M40i in most markets
  • • No official Euro NCAP safety rating

Specifications:

Specifications are compared to those of the previous generation(G29 LCI, facelift 2022: November, 2022 - ).

General:
Brand:BMW
Model:Z4
Generation:G29
Modification (Engine):M40i (382 Hp) Steptronic
Start of production:September, 2018
End of production:2022
Powertrain Architecture:Internal Combustion engine
Body type:Roadster
Seats:2
Doors:2
Engine:
Engine systems:Start & Stop System
Power:382 Hp @ 5000-6500 rpm.
Power per litre:127.4 Hp/l
Torque:500 Nm @ 1600-4500 rpm.
Engine Model/Code:B58B30O1 [Same engine] More details about the engine B58B30O1
Engine displacement:2998
Number of cylinders:6
Engine configuration:Inline
Number of valves per cylinder:4
Fuel injection system:Direct injection
Engine aspiration:Twin-power turbo, Intercooler
Valvetrain:VALVETRONIC, Double-VANOS
Engine oil capacity:6.5 l
Engine layout:Front, Longitudinal
Cylinder Bore:82 mm mm
Piston Stroke:94.6 mm mm
Compression ratio:11:1
Performance:
Fuel Type:Petrol (Gasoline)
Fuel consumption (economy) - urban:9.8 l/100 km
Fuel consumption (economy) - extra urban:7.6 l/100 km
Fuel consumption (economy) - urban (EPA):9.8 l/100 km
Fuel consumption (economy) - extra urban (EPA):7.6 l/100 km
Fuel consumption (economy) - combined (EPA):9 l/100 km
Fuel consumption (economy) - combined:9 l/100 km
Emission standard:LEV III
Maximum speed:250 km/h, Electronically limited
Weight-to-power ratio:4.1 kg/Hp, 244.6 Hp/tonne
Weight-to-torque ratio:3.1 kg/Nm, 320.1 Nm/tonne
Acceleration 0 - 60 mph:3.9 sec
Space:
Kerb Weight:1562
Max. weight:1856
Max load:294
Trunk (boot) space - minimum:280 l
Fuel tank capacity:52 l
Size:
Length:4336 mm mm [1mm less]
Width:1864 mm mm [Same width.]
Height:1306 mm mm [2mm more]
Wheelbase:2470 mm mm [Same wheelbase.]
Width including mirrors:2024 mm
Front track:1595 mm
Rear (Back) track:1590 mm
Front overhang:919 mm
Rear overhang:947 mm
Ride height (ground clearance):120 mm
Minimum turning circle (turning diameter):11 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears8
Transmission typeAutomatic
Gearbox typeSteptronic
Front brakesVentilated discs [Best for performance and cooling.]
Rear brakesVentilated discs [Best for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringElectric Steering
Tires sizeFront wheel tires: 255/40 R18; 255/35 R19
Wheel rims sizeFront wheel rims: 9J x 18; 9J x 19
Front suspensionSpring Strut, Transverse stabilizer
Rear suspensionIndependent multi-link spring suspension with stabilizer

Behind the wheel of the BMW Z4. How does it handle on the road?