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All-electric 530hp BMW i4 reaches 100 km/h in four seconds

When an ideal balance is called for between dynamics and ride comfort, the BMW 3 Series and 4 Series models consistently set the benchmark within their segments in the premium market. In terms of electrically powered vehicles, the new BMW i4 is set to take on this role very soon. The first purely electrically powered 4-door Gran Coupé enriches locally emission-free mobility with sheer driving pleasure.

“For the first time, we’ve developed a BMW with sporty DNA for purely electric driving entirely from scratch,” explains project manager David Alfredo Ferrufino Camacho. “The BMW i4 offers everything BMW stands for – and it’s fully electric, too.”

A few months prior to its world premiere, the BMW i4 is currently completing the final phase of driving dynamics testing. The focus here is on the integrated application of all drive and suspension components, ensuring that the spontaneous power delivery of the electric motor is combined with precisely controllable handling in every situation, fascinating cornering dynamics, optimised traction in all weather and road conditions and perfectly balanced ride comfort. For the purpose of this fine-tuning process, the BMW Group applies its technological expertise in the areas of drive and suspension drawn from decades of experience. This gives the new BMW i4 a mature premium character and makes for a driving experience that is unique within the competitive environment.

Excitingly calm: sprinting with the BMW i4.

With a maximum output of up to 390 kW/530 hp, the electric powertrain in the BMW i4 enables impressive acceleration manoeuvres: it reaches the 100 km/h mark in just four seconds from standstill. But even more impressive than its pure sprint capacity is the driving response it conveys. A model-specific damper technology reduces the dipping movements of the body at the moment of set-off, while the actuator-related wheel slip limitation (ARB) developed by BMW with its extremely fast and precise control guarantees optimum traction and perfect straight-line stability at all times – even on slippery road surfaces. This makes the catapult-like sprint in the new BMW i4 an experience that is both exciting and carefree, because it is not affected by drive slip or course corrections.

However, fascinating acceleration is only one aspect of the superior performance characteristics that define the BMW i4. Other distinguishing features include its spontaneous reactions to every movement – not just of the accelerator pedal but also of the steering and the brake pedal. The prerequisites for this high level of agility and precision are anchored in the underlying vehicle concept of the BMW i4. This includes the car's long wheelbase, wide track widths, model-specific camber values, large wheels, as well as the high torsional rigidity and the vehicle’s low centre of gravity and weight balance.

Effortless precision: taking the bend on the ideal line.

All these parameters were taken into account in detail in the integrated application of the drive and suspension components so as to ensure hallmark BMW sporty flair in every situation on the road. The design and tuning of the suspension and damping systems consistently ensure optimum road contact. At the same time, the virtually silent drive in combination with the sophisticated suspension technology gives the impression of an effortlessly floating vehicle even at higher speeds, entirely unaffected by bumps in the road or difficult traction conditions.

“The BMW i4 conveys the feeling of being light and agile yet also solid and authoritative,” says project manager David Alfredo Ferrufino Camacho. “With its superior directional reliability and high level of cornering stability, it seems to literally attach itself to the road. All electric vehicles are capable of fast straight-line acceleration. But that’s not enough for us at BMW.”

The BMW i4 is also effortlessly controllable – even in highly dynamic driving situations. In addition to its neutral self-steering behaviour and its powerful, precisely controllable brakes, the steering in the BMW i4 is a major contributing factor here: it responds directly and with a high degree of accuracy, offering the driver precise feedback at all times while remaining entirely independent of drive forces, even during intensive acceleration or deceleration. Lane changes at high speeds are mastered with ease, while relaxed driving over long distances is ensured by the speed-related Servotronic power steering and the fact that the vehicle is largely insusceptible to any disruption caused by road bumps.

Typical BMW: the unique balance between sporty flair and ride comfort.

The distinctive driving dynamics of the BMW i4 derive partly from the fact that its performance characteristics are not achieved at the expense of driving comfort. The purely electrically powered Gran Coupé is characterised by unrestricted suitability for day-to-day use. Fitted with a high-voltage storage system featuring the latest battery cell technology that enables a range of up to 600 kilometres (WLTP), the chassis technology of the BMW i4 is designed for long-distance comfort, too. It is based on the high-quality damper technology, supplemented with model-specific components and separately tuned. This effectively reduces body vibrations due to road unevenness and on bends. The model-specific fine-tuning of the suspension and damping contributes significantly to the harmonious driving characteristics of the BMW i4.

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Scania plans to introduce long-distance battery electric trucks.

Scania’s aim is to be the leader in the shift towards a sustainable transport system. Battery electric vehicles will be the main tool to drive this shift and to enable decarbonised transport solutions with better transport economy to customers.

The rapid development of electric solutions for heavy duty vehicles includes the fast advancement of battery technology in respect of energy storage capacity per kg. Charging time, charging cycles and economics per kg are improving rapidly. This means these solutions will become more cost effective, primarily in repetitive and predictable applications. They will gradually overtake Scania’s industry-leading fossil and biofuel powered solutions in most transport applications.

“We see that battery electric solutions are the first zero-tailpipe emission technology to reach market broadly. For the customer, a battery electric vehicle requires less service than a conventional one, meaning higher uptime and improved costs per km or hour of operations. We have learnt from the bus segment where transformation started earlier and battery electric options are in high demand. Scania’s timing in that segment was not optimal, however it provided good experiences and we are presently accelerating with the new Scania bus range. It also gave us good base knowledge as we ramp up the electrified truck business,” says Alexander Vlaskamp, Head of Sales and Marketing at Scania.

The company has already launched a fully electric truck as well as a plug-in hybrid truck. In a few years’ time, Scania plans to introduce long-distance electric trucks that will be able to carry a total weight of 40 tonnes for 4.5 hours, and fast charge during the drivers’ compulsory 45-minute rest.

By 2025, Scania expects that electrified vehicles will account for around 10 percent or our total vehicle sales volumes in Europe and by 2030, 50 percent of our total vehicle sales volumes are expected to be electrified.

Battery electric vs hydrogen Scania has invested in hydrogen technologies and is currently the only heavy-duty vehicle manufacturer with vehicles in operations with customers. The engineers have gained valuable insights from these early tests and efforts will continue. However, going forward the use of hydrogen for such applications will be limited since three times as much renewable electricity is needed to power a hydrogen truck compared to a battery electric truck. A great deal of energy is namely lost in the production, distribution, and conversion back to electricity.

Repair and maintenance also need to be considered. The cost for a hydrogen vehicle will be higher than for a battery electric vehicle as its systems are more complex, such as an extensive air- and cooling system. Furthermore, hydrogen is a volatile gas which requires more maintenance to ensure safety.

However, hydrogen is a promising energy carrier; good way of storing energy over long cycles, and will play an important role in decarbonisation if produced in an environmentally friendly way. Scania looks forward to sourcing fossil free steel for its trucks as hydrogen will play a greater role in several industries.

Stationary fuel cells are an important component of the electric charging system. This solution is especially promising in areas with abundant renewable energy, and in rural areas off the main electricity grid.

“To do what’s best for both our customers total operating economy and our planet, we are not closing the door on any possibilities. It is clear that Scania’s focus in the here-and-now perspective as well as short- term is a combination of renewable fuels and battery electric vehicles. We see that for basically all segments,” Vlaskamp continues.

Committed to more electric products Scania’s science based climate targets will see the company cut CO2 emissions from its own operations by 50 percent by 2025, as well as reduce emissions from the customers’ vehicles by 20 percent during the same period. To fulfil these far reaching targets, Scania’s focus is on well-to-wheel, which is more stringent than many of the legislative regulations coming up which centre on tank-to-wheel.

The company commits to launch at least one new electric product application in the bus and truck segment every year. At the same time, societal investments in a solid infrastructure for battery electric vehicles remains a priority.

“Scania’s focus is our customers’ business. Transport operators must be able to continue performing assignments in a sustainable way at a reasonable cost,” Vlaskamp concludes.

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