Uptake of electric vehicles has been slow, however. A SGD 20 000 (USD 16 000) offset against a car’sAdditional Registration Fee (ARF), which increases progressively with the original manufacturer’s value,is available on vehicles that emit no more than 100 grams of CO2 per kilometre; cars with high carbonemissions incur a corresponding ARF surcharge (Singapore Land Transport Authority, 2014). The semiannualroad tax also favours electric over petroleum-powered vehicles. However, remaining taxes onelectric vehicles, which do not differentiate between purely electric and other low-emissions alternatives,make electric vehicles among the most expensive options on the Singapore market. For example, anelectric vehicle selling for around SGD 88 000 (USD 70 000) before taxes would cost roughly twice thatamount once taxes are added.