The BMW i7 M70, launched in April 2023, represents the performance pinnacle of the G70 i7 generation. Positioned as the flagship variant, it delivers substantial power and range within BMW’s all-electric luxury sedan lineup. The i7 M70 builds upon the innovative technology and spacious interior of the standard i7, adding a dual-motor powertrain capable of exhilarating acceleration and a long driving range. It competes directly with other high-performance electric sedans like the Mercedes-Benz EQS 53 and the Porsche Taycan Turbo S, aiming to redefine the luxury EV experience.
Technical Specifications
| Brand | BMW |
| Model | i7 |
| Generation | i7 (G70) |
| Type | M70 105.7 kWh (660 Hp) xDrive |
| Start of production | April, 2023 |
| Powertrain Architecture | BEV (Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Electricity |
| 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) |
| Weight-to-power ratio | 4.1 kg/Hp, 244.9 Hp/tonne |
| Weight-to-torque ratio | 2.5 kg/Nm, 408.2 Nm/tonne |
| Gross battery capacity | 105.7 kWh |
| Net (usable) battery capacity | 101.7 kWh |
| Battery voltage | 376 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Below the floor |
| All-electric range (WLTP) | 488-560 km (303.23 – 347.97 mi) |
| Average Energy consumption (WLTP) | 20.8-23.8 kWh/100 km (33.47 – 38.3 kWh/100 mi) |
| MPGe | 101 – 88 |
| km/kWh | 4.8 – 4.2 |
| mi/kWh | 3 – 2.6 |
| Electric motor 1 Power | 258 Hp @ 8000 rpm |
| Electric motor 1 Torque | 365 Nm @ 0-5000 rpm (269.21 lb.-ft. @ 0-5000 rpm) |
| Electric motor 1 Location | Front axle, Transverse |
| Electric motor 1 Type | Synchronous |
| Electric motor 2 Power | 489 Hp @ 13000 rpm |
| Electric motor 2 Torque | 650 Nm @ 0-5000 rpm (479.42 lb.-ft. @ 0-5000 rpm) |
| Electric motor 2 Location | Rear axle, Transverse |
| Electric motor 2 Type | Synchronous |
| System power | 660 Hp |
| System torque | 1100 Nm (811.32 lb.-ft.) |
| Kerb Weight | 2695 kg (5941.46 lbs.) |
| Max. weight | 3250 kg (7165.02 lbs.) |
| Max load | 555 kg (1223.57 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Length | 5391 mm (212.24 in.) |
| Width | 1950 mm (76.77 in.) |
| Width including mirrors | 2192 mm (86.3 in.) |
| Height | 1544 mm (60.79 in.) |
| Wheelbase | 3215 mm (126.57 in.) |
| Front track | 1662 mm (65.43 in.) |
| Rear (Back) track | 1684 mm (66.3 in.) |
| Front overhang | 982 mm (38.66 in.) |
| Rear overhang | 1194 mm (47.01 in.) |
| Ride height (ground clearance) | 136 mm (5.35 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | One electric motor drives the front wheels, one electric motor drives the rear wheels. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 1 |
| Gearbox type | Automatic transmission |
| Front suspension | Double wishbone, Air suspension |
| Rear suspension | Independent multi-link suspension, Air suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system), 4-wheel steering |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Front tires | 255/40 R21 102Y XL |
| Rear tires | 285/35 R21 105Y XL |
| Front wheel rims | 9J x 21 |
| Rear wheel rims | 10.5J x 21 |
Powertrain & Engine Architecture
The i7 M70 utilizes a dual-motor, all-wheel-drive (xDrive) powertrain. The front motor produces 258 horsepower and 365 Nm (269 lb-ft) of torque, while the rear motor generates a substantial 489 horsepower and 650 Nm (479 lb-ft) of torque. Combined, these motors deliver a system output of 660 horsepower and 1100 Nm (811 lb-ft) with a boost function. Both motors are synchronous electric motors, known for their efficiency and power density. The 105.7 kWh battery pack, positioned low in the vehicle floor, provides a usable capacity of 101.7 kWh. The battery employs advanced cell chemistry and thermal management to maximize range and longevity. The i7 M70 features an 800-volt architecture, enabling faster DC fast charging speeds – capable of adding up to 80 miles of range in just 10 minutes at a compatible charging station.
Driving Characteristics
The i7 M70 delivers breathtaking acceleration, achieving 0-60 mph in approximately 3.5 seconds. The instant torque from the electric motors provides immediate responsiveness, making for effortless overtaking and a thrilling driving experience. The xDrive all-wheel-drive system ensures optimal traction in various conditions. The single-speed automatic transmission provides seamless power delivery, and the air suspension contributes to a remarkably smooth and comfortable ride. While the i7 M70 prioritizes performance, it doesn’t sacrifice refinement. The car offers multiple driving modes, allowing drivers to tailor the driving experience to their preferences, from maximizing efficiency to unleashing the full performance potential.
Equipment & Trim Levels
The i7 M70 comes standard with a comprehensive suite of luxury features. Interior appointments include premium leather upholstery, multi-contour seats with massage function, a panoramic glass sunroof, and a Bowers & Wilkins Diamond Surround Sound System. The i7’s Theatre Screen, a 31.3-inch 8K display that folds down from the ceiling for rear passengers, is also standard. Standard driver-assistance systems include adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras include a rear executive lounge package with individual rear seats, a chilled compartment, and a bespoke interior trim options.
Chassis & Braking
The i7 M70 features a double-wishbone front suspension and an independent multi-link rear suspension, both incorporating air suspension with adaptive dampers. This setup provides a comfortable ride while maintaining precise handling. The car is equipped with large ventilated disc brakes on all four wheels, providing ample stopping power. The standard equipment includes ABS, stability control, and a 4-wheel steering system that enhances maneuverability at low speeds and stability at high speeds.
Market Reception & Comparison
The i7 M70 has been generally well-received by automotive critics, praised for its impressive performance, luxurious interior, and advanced technology. Comparisons to rivals like the Mercedes-Benz EQS 53 often highlight the i7 M70’s more engaging driving dynamics and slightly more spacious rear seating. Fuel economy, expressed as MPGe, is competitive within the luxury EV segment, ranging from 88 to 101 MPGe. Reliability data is still emerging, given the relatively recent launch, but BMW’s reputation for build quality and the inherent simplicity of electric powertrains suggest good long-term reliability.
Legacy
The i7 M70 represents a significant step forward in BMW’s electric vehicle strategy. Its powerful powertrain, luxurious features, and advanced technology set a new benchmark for electric luxury sedans. The 800-volt architecture and fast-charging capabilities address a key concern for EV buyers – range anxiety and charging times. As the electric vehicle market matures, the i7 M70 is likely to be remembered as a pivotal model that helped accelerate the adoption of electric luxury vehicles and demonstrated BMW’s commitment to innovation.
