Allow us to introduce you to the quickest diesel vehicle currently on sale in Australia, and, as far as we’re aware, the quickest production diesel sedan ever made; the 2013 Audi A6 TDI Biturbo.

This is where the 2015 Volkswagen Touareg steps in ... First is the 150kW/450Nm 150 TDI (up 50Nm from predecessor), which uses a 3.0-litre V6 engine. Prices start at $67,990.

Find out how much the Road Tax (Vehicle Excise Duty or VED) will be on your car over the coming year. Cars from 1 March 2001 are taxed according to how much CO2 they emit. Cars registered before 1 ...