Drive system: Urban driving fun

Jun 27, 2018

The electrically powered smart models (power consumption, combined: 14.0-13.5 kWh/100 km; combined CO2 emissions: 0 g/km1) make opting into electric mobility more attractive than ever before, as they combine the agility of the smart with local emission-free driving – the ideal match for urban mobility.

A 60 kW (82 hp) electric motor runs at the rear of the smart EQ fortwo and smart EQ forfour, transmitting its power via a constant ratio to the wheels. Powerful torque of 160 Nm is immediately available from a standstill. The electric drive has a range of approximately 155 km – ideal for local emission-free mobility in urban areas. The maximum speed is electronically limited to 130 km/h to maximise the range.

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.

An important factor for electric vehicle customers is the charging time. Here too, smart EQ fortwo and smart EQ forfour offer a level of convenience superior to that of their predecessors: all models have a new, powerful on-board charger as a standard feature. In the USA and UK the charging time is 2.5 hours (from 0 to 80%) – half as long as for the predecessor. With the "smart EQ control" app the charging process can be conveniently monitored from afar and many more functions such as intelligent charging can be controlled.

Since March 2018, a particularly powerful 22 kW fast charger has been optionally available. This enables the electric smart to be charged much more quickly: in less than 40 minutes (10-80%) when local conditions allow three-phase charging.

The smart EQ fortwo rolls off the production line at the smart plant in Hambach (France). The smart is equipped with a battery from the Daimler subsidiary Deutsche Accumotive. This company based in Kamenz, Saxony, has been producing the electric heart of the electrically powered smart since 2012. The drive is produced at Renault's plant in Clèon, Northern France. 

State-of-the-art three-cylinder petrol models and dual-clutch transmission optionally available

Those who prefer a conventional drive system have a choice of two state-of-the-art three-cylinder engines: the naturally aspirated engine generates 52 kW/71 hp from a cubic capacity of 999 cc (fuel consumption, combined: 5.2-4.8 l/100 km; combined CO2 emissions: 120-111 g/km1). The more powerful engine variant is the turbo engine rated at 66 kW/90 hp (fuel consumption, combined: 5.4-5.0 l/100 km; combined CO2 emissions: 133-115 g/km1).

[1]The figures stated were determined according to the prescribed measuring process. They constitute the NEDC CO2 figures in accordance with Art. 2, no. 1 of Implementing Regulation (EU) 2017/1153. The fuel consumption figures were calculated on the basis of these figures