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T is for Tank-to-wheel (TTW)

T is for Tank-to-wheel (TTW)

The term Tank-to-Wheel (TTW) refers to a subrange in the energy chain of a vehicle that extends from the point at which energy is absorbed (charging point; fuel pump) to discharge (being on the move). TTW thus describes the use of fuel in the vehicle and emissions during driving, while the term Well-to-Tank (WTT) describes the subrange of fuel supply ­– from production of the energy source (petrol, diesel, electricity, natural gas) to fuel supply (transport to the charging point or fuel pump). On the other hand, in the era of e-mobility and decarbonization, a holistic approach is increasingly favoured which covers the entire energy consumption and all greenhouse gas emissions of a fuel caused by production, supply and use. The generic term that subsumes Tank-to-Wheel and Well-to-Tank is Well-to-Wheel (WTW).

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The specified fuel consumption and emission data are determined in accordance with the measurement procedures prescribed by law. 1 January 2022, the WLTP test cycle completely replaced the NEDC test cycle and therefore no NEDC values are available for new type approved vehicles after that date.

This information does not refer to a single vehicle and is not part of the offer but is only intended for comparison between different types of vehicles. Additional equipment and accessories (additional components, tyre formats, etc.) can alter relevant vehicle parameters such as weight, rolling resistance and aerodynamics, affecting the vehicle's fuel consumption, power consumption, CO2 emissions and driving performance values in addition to weather and traffic conditions and individual driving behavior.

Due to more realistic testing conditions, fuel consumption and CO2 emissions measured according to WLTP will in many cases be higher than the values measured according to NEDC. As a result, the taxation of vehicles may change accordingly as of 1 September 2018. For further information on the differences between WLTP and NEDC, please visit www.volkswagen.de/wltp.

Further information on official fuel consumption data and official specific CO2 emissions for new passenger cars can be found in the "Guide to fuel economy, CO2 emissions and power consumption for new passenger car models", which is available free of charge from all sales dealerships and from DAT Deutsche Automobil Treuhand GmbH, Hellmuth-Hirth-Str. 1, D-73760 Ostfildern, Germany and at www.dat.de/co2.