Lotus Unveils Concept Extended Range Electric City Car

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).

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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