Lotus Unveils Concept Extended Range Electric City Car

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Lotus CIty Car drivetrain. Click to enlarge.

At the Paris Motor Show, Lotus unveiled five new cars, two evolutions of existing models and a new concept city car. The Lotus City Car concept provides a showcase for Lotus Engineering’s Electrical and Electronic Integration and Efficient Performance competencies, featuring an advanced series hybrid drivetrain with the Lotus Range Extender engine (earlier post).

Equipped with a single-speed transmission, drivetrain provides the vehicle with an all-electric range of 60 km (37 miles) from its 14.8 kWh battery pack to cover the majority of daily journeys operating as a plug-in EV. With the range extender, the city car has a full range of 500 km (311 miles).

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The Lotus City Car. Click to enlarge.

Using Range Extender technology allows the vehicle to be specified with a smaller, lighter and less expensive battery pack than a regular EV, Lotus notes.

With a total vehicle weight of less than 1,400 kg (3,086 lbs) and 240 N&iddot;m (177 lb-ft) of torque instantly available, the Lotus City Car concept has class-leading acceleration; 0 - 50 km/h (0 -31 mph) in 4.5 seconds and 0 - 100 km/h in 9 seconds, when operating as an EV under battery power. The top speed of the Lotus City Car concept is 170 km/h (106 mph), with a charge-sustaining top speed of 120 km/h (75 mph). This performance is achieved by a drivetrain that returns CO2 emissions of 60 g/km on the ECE-R101 test schedule.

The 1.2-liter, 3-cylinder Lotus Range Extender engine, specifically designed for hybrid vehicle applications, drives a 240 Nm, 54 kW continuous (162 kW peak) generator. The Range Extender engine is designed for flex-fuel operation on ethanol and methanol as well as regular gasoline.


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