The four-cylinder engine features a compression ratio of 11:1 and delivers peak output of 150hp (110kW) at 5,600rpm and 210Nm (155lb-ft) of torque at 2,300rpm. This is enough to see the Cévennes reach a top speed of 130mph and accelerate from 0-60mph in a brisk 6.5 seconds.
The car’s compressed natural gas storage tank holds 22kg or 132L of fuel, which is enough to take the roadster over 280 miles. Combined cycle fuel consumption is 35mpg and its CO2 emissions are a low 118g/km. The car can also run on biogas, which means it will be CO2-neutral.