This is a 1.2 litre 3-cylinder with 2 valves per cylinder belt-driven engine. It produces 47bhp at 3500 rpm via integrated electrical generator and 107N/m of torque.

Like all other manufacturers, Lotus also are targeted to hybrid vehicles. The Lotus Range Extender engine offers the advantage of a cost effective design, high efficiency and low mass and in the same time extended range.

The main project is called "Limo-green" and it is a collaboration between Lotus Engineering, Jaguar Cars Ltd, MIRA Ltd and Caparo Vehicle Technologies. The goal is making a large executive saloon with less than 120 g/km CO2 emissions.

Technical details: Technical specification of the Lotus Range Extender engine

General 1.2 litre 3-cylinder with 2 valves per cylinder, SOHC Belt driven
Construction Monoblock with Integrated Exhaust Manifold All aluminium Balance shaft (optional) Direct-coupled generator
Bore and Stroke 75.0 mm x 90.0 mm
Compression ratio 10:1
Maximum power 35 kW (47 bhp) at 3500 rpm via integrated electrical generator
Peak torque 107 Nm at 2500 rpm
Maximum BMEP 11.2 bar
Maximum Engine Speed 3500 rpm
Fuel System Port fuel injection, Lotus EMS
Fuel 95 RON ULG / ethanol / methanol
Dry weight 56 kg