The BMW M4 Convertible (G83 LCI), specifically the Competition 3.0 with 530 horsepower and M xDrive paired with the M Steptronic automatic transmission, represents the pinnacle of performance within the G83 generation. Introduced in March 2024 as part of a Life Cycle Impulse (LCI) facelift, this variant builds upon the foundation laid by the initial G83 launch, offering enhanced aesthetics, updated technology, and the same exhilarating driving experience. Positioned as the top-tier offering in the M4 Convertible lineup, it caters to drivers seeking open-air performance without compromise. The G83 LCI continues the tradition of BMW’s high-performance convertibles, blending luxury with track-capable engineering.
Technical Specifications
| Brand | BMW |
| Model | M4 |
| Generation | M4 Convertible (G83 LCI, facelift 2024) |
| Type | Competition 3.0 (530 Hp) M xDrive M Steptronic |
| Start of production | March, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Cabriolet |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 10.2-10.3 l/100 km |
| Combined fuel consumption (US mpg) | 23.1 – 22.8 |
| Combined fuel consumption (UK mpg) | 27.7 – 27.4 |
| Combined fuel consumption (km/l) | 9.8 – 9.7 |
| CO2 emissions (WLTP) | 231-233 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.7 sec |
| Acceleration 0 – 62 mph | 3.7 sec |
| Acceleration 0 – 60 mph | 3.5 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 3.6 kg/Hp, 275.3 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 337.7 Nm/tonne |
| Power | 530 Hp @ 6250 rpm |
| Power per litre | 177.1 Hp/l |
| Torque | 650 Nm @ 2750-5730 rpm (479.42 lb.-ft. @ 2750-5730 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | S58B30T0 |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 9.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | Double-VANOS, VALVETRONIC |
| Engine oil capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1925 kg (4243.9 lbs.) |
| Max. weight | 2345 kg (5169.84 lbs.) |
| Max load | 420 kg (925.94 lbs.) |
| Trunk (boot) space – minimum | 385 l (13.6 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Length | 4801 mm (189.02 in.) |
| Width | 1887 mm (74.29 in.) |
| Width including mirrors | 2081 mm (81.93 in.) |
| Height | 1399 mm (55.08 in.) |
| Wheelbase | 2857 mm (112.48 in.) |
| Front track | 1617 mm (63.66 in.) |
| Rear (Back) track | 1605 mm (63.19 in.) |
| Front overhang | 867 mm (34.13 in.) |
| Rear overhang | 1077 mm (42.4 in.) |
| Ride height (ground clearance) | 121 mm (4.76 in.) |
| Drag coefficient (Cd) | 0.34 |
| Minimum turning circle (turning diameter) | 12.6 m (41.34 ft.) |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels driven by clutch. |
| Number of gears and type of gearbox | 8 gears, automatic transmission M Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front: 275/35 R19, Rear: 285/30 R20 |
| Wheel rims size | Front: 9.5J x 19, Rear: 10.5J x 20 |
Powertrain & Engine Architecture
At the heart of the M4 Convertible Competition lies the S58B30T0, a 3.0-liter inline-six engine. This engine is a masterpiece of engineering, featuring a twin-turbocharged configuration, direct fuel injection, and BMW’s renowned Double-VANOS and VALVETRONIC technologies. The twin-scroll turbochargers minimize turbo lag and deliver a broad, flat torque curve. The engine produces 530 horsepower at 6,250 rpm and a substantial 650 Nm (479.42 lb-ft) of torque between 2,750 and 5,730 rpm. This power is channeled through an 8-speed M Steptronic automatic transmission, specifically tuned for rapid and precise gear changes. The M Steptronic transmission offers both automatic and manual shifting modes, allowing the driver to tailor the driving experience to their preferences. The M xDrive all-wheel-drive system intelligently distributes power between the front and rear axles, maximizing traction and stability in all conditions.
Driving Characteristics
The combination of the potent S58 engine, the quick-shifting M Steptronic transmission, and the M xDrive system results in exhilarating performance. Acceleration from 0 to 60 mph is achieved in just 3.5 seconds, and the car is electronically limited to a top speed of 155.34 mph (250 km/h). The M xDrive system allows for a rear-biased power distribution in Sport mode, providing a more engaging and dynamic driving experience. The automatic transmission’s gear ratios are optimized for both acceleration and fuel efficiency. While not as raw or visceral as a manual transmission, the M Steptronic offers seamless shifts and allows the driver to focus on maximizing performance. Compared to lower-powered M4 variants, the Competition model delivers a significantly more aggressive and responsive driving experience.
Equipment & Trim Levels
The M4 Convertible Competition comes standard with a comprehensive array of features, including leather upholstery, power-adjustable and heated front seats, a premium sound system, and a host of advanced driver-assistance systems. The LCI facelift brought updated interior trim options and a redesigned infotainment system with a larger touchscreen display. Optional extras include carbon fiber trim, upgraded leather options, a head-up display, and adaptive cruise control. The convertible top is a fully automatic retractable hardtop, providing both open-air driving enjoyment and coupe-like security and refinement when closed.
Chassis & Braking
The M4 Convertible features a robust chassis with model-specific suspension tuning. The front suspension utilizes a spring-strut design with a transverse stabilizer, while the rear suspension employs an independent multi-link setup, also with a stabilizer bar. This configuration provides a balance of comfort and handling precision. Braking duties are handled by ventilated discs at all four corners, providing ample stopping power. The ABS (Anti-lock braking system) and other electronic stability control systems further enhance safety and control.
Market Reception & Comparison
The M4 Convertible Competition has been widely praised by automotive critics for its exceptional performance, luxurious interior, and advanced technology. While the fuel economy of 10.2-10.3 l/100 km (23.1-22.8 US mpg) is not exceptional, it is reasonable for a high-performance convertible. Compared to the standard M4 Convertible, the Competition model offers a significant performance upgrade, justifying its higher price tag. Compared to other high-performance convertibles in its class, such as the Porsche 911 Cabriolet, the M4 Convertible Competition offers a compelling combination of performance, luxury, and value.
Legacy
The S58 engine and M Steptronic transmission pairing in the G83 M4 Convertible Competition are expected to be highly reliable, building upon the proven track record of BMW’s M division. The M xDrive system adds to the car’s all-weather capability and long-term durability. On the used car market, these models are expected to hold their value well due to their performance credentials and desirability. The G83 LCI represents a refinement of an already impressive platform, solidifying the M4 Convertible’s position as a benchmark in the high-performance convertible segment.
