smart EQ fortwo, smart EQ fortwo cabrio, smart EQ forfour: electric cars for the city

smart is the first car brand with its sights set on a clean-cut switchover from combustion engines to electric drive. All new smart cars sold in the USA, Canada and Norway since 2017 are electric, with all of Europe set to offer exclusively battery-electric smart cars by 2020. The rest of the world is then expected to follow soon afterwards.

The smart EQ fortwo and smart EQ forfour (combined electrical consumption 20.8-12.9 kWh/100 km; combined CO2 emissions: 0 g/km)1 already make access to the world of electric mobility more attractive than ever as they combine the agility of the smart with locally emission-free driving – the ideal match for urban mobility. The existing smart fortwo coupé and smart forfour were joined by the smart fortwo cabrio with battery-electric drive in summer 2017.

With 160 Nm of torque immediately available, the 60 kW electric car boasts exceedingly agile acceleration. One battery charge gives a suitable range for city traffic. The smart EQ fortwo and smart EQ forfour can be charged at a domestic power socket – up to twice as fast as before with the powerful on-board charger fitted as standard, depending on national version. Introduced in March 2018, the 22 kW quick charger can shorten the charging time at a Wallbox to below 40 minutes (10-80%).

The electric motor takes the form of a separately excited three-phase synchronous motor. This configuration incorporates a winding on the rotor that is magnetised when current flows. The flow of energy from the high-voltage battery to the electric motor is controlled by the power electronics that are compactly interlocked with the drive unit.

Thanks to the power characteristics of the electric motor, the smart needs just one single fixed gear ratio. There is no need for any gear changing – a major advantage in dense city traffic. To reverse, the engine's direction of rotation changes.

The ECO mode is a particularly energy-efficient driving program. The radar-based recuperation controls energy recovery depending on the traffic situation. To save energy and extend the range, the smart EQ fortwo and smart EQ forfour also feature pre-entry climate control.

With the "smart EQ control" app, a wealth of electric-specific information can be called up via smartphone, tablet or PC, and functions such as pre-entry climate control or intelligent charging can be conveniently controlled remotely.

Technical data at a glance: 

 

smart EQ fortwo1

smart EQ fortwo cabrio1

smart EQ forfour1

Engine/design

Separately excited three-phase synchronous motor

Continuous output (kW)

41

Max. output (kW)

60

Peak torque (Nm)

160

Combined electrical consumption (kWh/100 km), 4.6 kW on-board charger

15.7-13.9

15.8-13.9

16.4-14.5

Combined electrical consumption (kWh/100 km), 22 kW on-board charger at Wallbox

14.5-12.9

14.5-13.0

15.4-13.4

Combined electrical consumption (kWh/100 km), 22 kW on-board charger at domestic power socket

20.1-18.0

20.2-18.0

20.8-18.6

Combined CO2 emissions (g/km)

0

Efficiency class

A+

Range

154-160

145-159

139-154

Acceleration 0-60 km/h (s)

4.9

5.1

5.5

Acceleration 0-100 km/h (s)

11.5

11.8

12.7

Top speed (km/h)

130

130

130

1 The stated figures were determined in accordance with the prescribed measuring method. These are the "NEDC CO2 figures" according to Art. 2 No. 1 Implementing Regulation (EU) 2017/1153. Power consumption has been determined on the basis of Directive 692/2008/EC. Further information on the vehicles on offer, including the WLTP values, can be found for each country at www.smart.com

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