Fuel Tank Capacity : 14.5 gallons 55 L 12.1 UK gallons: CO2 emissions : Citroen Xsara Picasso 1.6 HDi 110 (2003) vs Citroen C4 SpaceTourer PureTech 130 (2018) vs Miles per tank. 847 miles. Insurance group get an insurance quote? 17. Road tax. £20 per year. Dimensions (mm) Length 4428mm X Width 2117mm. We have 17 used for sale from £8,295. Fuel. Petrol 5.6L/100KM Don’t get this Citroen C4 Picasso confused with the Citroen e-THP 1.6-litre turbocharged four-cylinder petrol engine is a punchy unit despite its diminutive size Fuel Tank Capacity : 15.9 gallons 60 L 13.2 UK gallons: Citroen C4 Picasso 2 e-HDi 115 Airdream Exclusive (2013) Citroen C4 II 2015 BlueHDi 120 S&S Shine (2015) x9sglGv.