BMW Z4 G29 M40i (382 Hp) Steptronic
Overall Rating
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.
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:
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.
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 Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 8 |
| Transmission type | Automatic |
| Gearbox type | Steptronic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Ventilated discs [Best for performance and cooling.] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front wheel tires: 255/40 R18; 255/35 R19 |
| Wheel rims size | Front wheel rims: 9J x 18; 9J x 19 |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |

















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