Tech-know-logic

Passioneers love design, engineering and everything in-between.

Tech n Design

THE M3ELECTRO

An electric powerhouse, the M3Electro carries our in-house developed powertrain for Season 3 of the championship. A revolutionary step ahead from Season 2, it is a manifestation of absolute engineering.

Christened ‘Ampere,’ ‘Voltaire,’ and ‘Arjuna’ (an Indian warrior); these stunners set the streets ablaze. M3Electro was born as a result of 2500 hours of sweat and blood.

POWERTRAIN

The all-electric powertrain is also the ‘powerbrain’ of the M3Electro. A powerful leap from Season 2, it sports more than 300 new components. A six-phase unit with two-speed transmission, it guarantees better performance, reliability and efficiency.

Peak RPM has improved by 14%, while peak torque has increased by 38%. Weighing just 23 kgs, the overall drivetrain mass has reduced by 40% for greater agility.

BATTERY

The M3Electro houses a Williams-developed battery weighing around 350kg, complete with a carbon-fibre safety casing.

During the race, teams are permitted to use 28kWh of energy in each car. In Season 3 the maximum outputs are set at 170kW during race mode and 200kW for qualifying, catapulting the car from 0-100kmh in less than three seconds.

Test the best

Just around the corner of the famed Circuit de Barcelona lies our European testing garage. This is where our engineers spend hours setting up and fine tuning the M3Electro for the next race.

But the most crucial tool for prep time is the simulator. The team spends close to 100 hours of simulation for every one hour on the track.

STEERING WHEEL

Formula E cars are getting rapidly more complex and already have hundreds of sensors and many different complex electronics and software systems.

The M3Electro sports a new and fully customisable steering wheel – with six rear paddles, six rotary controls, ten buttons, LED warning lights and a larger colour LCD dash display.

REGENERATIVE BRAKING

It’s the most unique feature in electric racing technology. Every time the driver hits the brakes, the car's kinetic energy – that would have otherwise been wasted – is recaptured and converted into electricity. Power is fed back into the batteries, charging them up.

Permitted energy regen increased from 100kW to 150kW in Season 3. However, the maximum power output remains 200 kW.

Taking our Season 4 car – the M4Electro, for a spin

Passioneer Gul Panag is the first Indian woman to drive a Formula E car.

TECH SPEC

TOTAL WEIGHTTOTAL WEIGHT
880kg with driver and ballast – 8 kgs lesser than the S2 car.
OVERALL LENGTHOVERALL LENGTH
5,000mm
OVERALL WIDTHOVERALL WIDTH
1,800mm
HEIGHTHEIGHT
OVERALL HEIGHT

1,250mm

RIDE HEIGHT

75mm

TYRESTYRES
Michelin-supplied, 18-inch, all-weather tyres for stronger grip.
FRONT WINGFRONT WING
A futuristic looking, carbon-fibre unit – around 3kg heavier than S2. The stiffer component causes less damage in close quarters wheel-to-wheel action.
LIVERYLIVERY
Designed by #DrivenByDesign contest winner Adri Haro Jorba (from Spain). Entry chosen from 281 entries received during the 10-day competition, from 40 different countries.
MOTORMOTOR
• Magneti Marelli six phase MGU
• Transverse orientation
• Peak RPM increase of 14% (compared to M2Electro)
• Peak torque increase of 38% (compared to M2Electro)
INVERTERINVERTER
• Two inverters, each controlling three motor phases
• F1-derived technology (SicMOSFET high-frequency switching architecture)
• Bespoke DC junction assembly
COOLINGCOOLING
• Parallel closed systems for inverters and motor
• Bespoke ducting
• Bespoke radiator
TRANSMISSIONTRANSMISSION
• Bespoke two-speed gearbox
• Pneumatically actuated barrel/fork shift
• Transverse layout
• Bespoke carbon-fibre casing
REAR SUSPENSIONREAR SUSPENSION
• Bespoke lightweight, unequal length wishbones
• Low friction bearings
• Pushrod-actuated coilover dampers, with bespoke rockers and anti-roll bars
BATTERYBATTERY
• 600V batteries supplied by Williams Advanced Engineering.
• Weight: 350kg
• Capacity: 28kWh
TOP SPEEDTOP SPEED
225kph, Propels the car from 0-100kph in less than 3 seconds.

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